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BOSTON MARATHON 2026

Isador Lieberman

Bib: 22309•M

TX

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0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M65-69)
#0 / 774
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
27:36
3.11 mi
Rank: #22098
Start → 5K
27:36 | 8:54/mi
10K
56:23
6.21 mi
Rank: #23045 (-947)
5K → 10K
28:47 | 9:16/mi
15K
1:27:12
9.32 mi
Rank: #24085 (-1040)
10K → 15K
30:49 | 9:56/mi
20K
1:56:20
12.43 mi
Rank: #23893 (+192)
15K → 20K
29:08 | 9:23/mi
HALF
2:02:55
13.11 mi
Rank: #23927 (-34)
20K → HALF
6:35 | 9:40/mi
25K
2:25:21
15.53 mi
Rank: #23636 (+291)
HALF → 25K
22:26 | 9:16/mi
30K
2:56:28
18.64 mi
Rank: #23534 (+102)
25K → 30K
31:07 | 10:01/mi
20M
3:09:56
20.00 mi
Rank: #23419 (+115)
30K → 20M
13:28 | 9:55/mi
21M
3:20:52
21.00 mi
Rank: #23377 (+42)
20M → 21M
10:56 | 10:56/mi
35K
3:27:43
21.75 mi
Rank: #23263 (+114)
21M → 35K
6:51 | 9:10/mi
23M
3:40:15
23.00 mi
Rank: #23193 (+70)
35K → 23M
12:32 | 10:01/mi
24M
3:54:56
24.00 mi
Rank: #23745 (-552)
23M → 24M
14:41 | 14:41/mi
40K
4:08:05
24.85 mi
Rank: #24173 (-428)
24M → 40K
13:09 | 15:23/mi
25.2M
4:13:33
25.20 mi
Rank: #24318 (-145)
40K → 25.2M
5:28 | 15:52/mi
FINISH
4:26:17
26.22 mi
Rank: #24551 (-233)
25.2M → FINISH
12:44 | 12:30/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:02:55
Pace9:23 /mi
2nd Half
Distance13.11 mi
Time2:23:22
Pace10:57 /mi
📊Positive Split: 16.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:1427:368:5427:36
8:54
-
10K
6.21 mi11:58:0156:239:0528:47
9:16
+0:22
15K
9.32 mi12:28:501:27:129:2230:49
9:56
+0:40
20K
12.43 mi12:57:581:56:209:2229:08
9:23
-0:33
HALF
13.11 mi13:04:332:02:559:236:35
9:40
+0:17
25K
15.53 mi13:26:592:25:219:2222:26
9:16
-0:24
30K
18.64 mi13:58:062:56:289:2831:07
10:01
+0:45
20M
20.00 mi14:11:343:09:569:3013:28
9:55
-0:06
21M
21.00 mi14:22:303:20:529:3410:56
10:56
+1:01
35K
21.75 mi14:29:213:27:439:346:51
9:10
-1:46
23M
23.00 mi14:41:533:40:159:3512:32
10:01
+0:51
24M
24.00 mi14:56:343:54:569:4814:41
14:41
+4:40
40K
24.85 mi15:09:434:08:059:5913:09
15:23
+0:42
25.2M
25.20 mi15:15:114:13:3310:045:28
15:52
+0:29
FINISH
26.22 mi15:27:554:26:1710:1012:44
12:30
-3:22

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:54 /mi

Average Pace

10:10 /mi

Slowest Pace

15:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:40:15

83% of race

Time at Slower Pace

46:02

17% of race

Average Pace: 10:09 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:29:1427:368:5427:36
8:54
#22098
10K
6.21 mi11:58:0156:239:0528:47
9:16
#23045
15K
9.32 mi12:28:501:27:129:2230:49
9:56
#24085
20K
12.43 mi12:57:581:56:209:2229:08
9:23
#23893
HALF
13.11 mi13:04:332:02:559:236:35
9:40
#23927
25K
15.53 mi13:26:592:25:219:2222:26
9:16
#23636
30K
18.64 mi13:58:062:56:289:2831:07
10:01
#23534
20M
20.00 mi14:11:343:09:569:3013:28
9:55
#23419
21M
21.00 mi14:22:303:20:529:3410:56
10:56
#23377
35K
21.75 mi14:29:213:27:439:346:51
9:10
#23263
23M
23.00 mi14:41:533:40:159:3512:32
10:01
#23193
24M
24.00 mi14:56:343:54:569:4814:41
14:41
#23745
40K
24.85 mi15:09:434:08:059:5913:09
15:23
#24173
25.2M
25.20 mi15:15:114:13:3310:045:28
15:52
#24318
FINISH
26.22 mi15:27:554:26:1710:1012:44
12:30
#24551
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi22098132671326725476(Top 88%)14953(Top 92%)14953(Top 1932%)
10K6.21 mi3.10 mi23045-94713760-49313760-49323845(Top 82%)14175(Top 87%)14175(Top 1831%)
15K9.32 mi3.11 mi24085-104014296-53614296-53625476(Top 88%)14953(Top 92%)14953(Top 1932%)
20K12.43 mi3.11 mi23893+19214196+10014196+10023358(Top 80%)13894(Top 85%)13894(Top 1795%)
HALF13.11 mi0.68 mi23927-3414213-1714213-1724774(Top 85%)14581(Top 89%)14581(Top 1884%)
25K15.53 mi2.42 mi23636+29114053+16014053+16022223(Top 77%)13340(Top 82%)13340(Top 1724%)
30K18.64 mi3.11 mi23534+10213966+8713966+8723173(Top 80%)13702(Top 84%)13702(Top 1770%)
20M20.00 mi1.36 mi23419+11513885+8113885+8122335(Top 77%)13222(Top 81%)13222(Top 1708%)
21M21.00 mi1.00 mi23377+4213852+3313852+3322952(Top 79%)13471(Top 82%)13471(Top 1740%)
35K21.75 mi0.75 mi23263+11413784+6813784+6820650(Top 71%)12321(Top 75%)12321(Top 1592%)
23M23.00 mi1.25 mi23193+7013748+3613748+3622180(Top 76%)13008(Top 80%)13008(Top 1681%)
24M24.00 mi1.00 mi23745-55214015-26714015-26728614(Top 99%)16097(Top 99%)16097(Top 2080%)
40K24.85 mi0.85 mi24173-42814200-18514200-18528607(Top 99%)16093(Top 98%)16093(Top 2079%)
25.2M25.20 mi0.35 mi24318-14514253-5314253-5328371(Top 98%)15945(Top 98%)15945(Top 2060%)
FINISH26.22 mi1.02 mi24551-23314356-10314356-10327885(Top 96%)15722(Top 96%)15722(Top 2031%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21
+97ft-345ft

Overall

25476

Males

14953

M65-69

14953

5K→10K

3.1 - 6.2 mi

Top 82%
×5
+79ft-138ft

Overall

23845

Males

14175

M65-69

14175

10K→15K

6.2 - 9.3 mi

Top 88%
×3
+67ft-78ft

Overall

25476

Males

14953

M65-69

14953

15K→20K

9.3 - 12.4 mi

Top 80%
×5
+106ft-86ft

Overall

23358

Males

13894

M65-69

13894

20K→HALF

12.4 - 13.1 mi

Top 85%
×2
+19ft-37ft

Overall

24774

Males

14581

M65-69

14581

HALF→25K

13.1 - 15.5 mi

Top 77%
×4
+66ft-88ft

Overall

22223

Males

13340

M65-69

13340

25K→30K

15.5 - 18.6 mi

Top 80%
×9
+181ft-148ft

Overall

23173

Males

13702

M65-69

13702

30K→20M

18.6 - 20.0 mi

Top 77%
×5
+64ft-50ft

Overall

22335

Males

13222

M65-69

13222

20M→21M

20.0 - 21.0 mi

Top 79%
×8
+106ft-24ft

Overall

22952

Males

13471

M65-69

13471

21M→35K

21.0 - 21.8 mi

Top 71%
×7
+17ft-86ft

Overall

20650

Males

12321

M65-69

12321

35K→23M

21.8 - 23.0 mi

Top 76%
×5
+23ft-63ft

Overall

22180

Males

13008

M65-69

13008

23M→24M

23.0 - 24.0 mi

Top 99%
×6
+12ft-82ft

Overall

28614

Males

16097

M65-69

16097

24M→40K

24.0 - 24.9 mi

Top 99%
×1
+6ft-20ft

Overall

28607

Males

16093

M65-69

16093

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1
+13ft-16ft

Overall

28371

Males

15945

M65-69

15945

25.2M→FINISH

25.2 - 26.2 mi

Top 96%
×2
+22ft-21ft

Overall

27885

Males

15722

M65-69

15722

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1251*
Passed By
1429
Net Change
-2453
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22098
5K → 10K46200-947#22098#23045
10K → 15K13200-1040#23045#24085
15K → 20K235*43+192#24085#23893
20K → HALF1852-34#23893#23927
HALF → 25K298*7+291#23927#23636
25K → 30K19391+102#23636#23534
30K → 20M13419+115#23534#23419
20M → 21M8543+42#23419#23377
21M → 35K1162+114#23377#23263
35K → 23M9626+70#23263#23193
23M → 24M6200-552#23193#23745
24M → 40K2200-428#23745#24173
40K → 25.2M1146-145#24173#24318
25.2M → FINISH8200-233#24318#24551
TOTALS1251*1429-2453

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing