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BOSTON MARATHON 2026

Jason Nolff

Bib: 15002•M

MI

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 47%
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Top 50%
Age Group (M50-54)
#0 / 1868
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
24:45
3.11 mi
Rank: #16670
Start → 5K
24:45 | 7:58/mi
10K
49:23
6.21 mi
Rank: #16689 (-19)
5K → 10K
24:38 | 7:56/mi
15K
1:13:49
9.32 mi
Rank: #16424 (+265)
10K → 15K
24:26 | 7:52/mi
20K
1:38:01
12.43 mi
Rank: #15892 (+532)
15K → 20K
24:12 | 7:48/mi
HALF
1:43:11
13.11 mi
Rank: #15768 (+124)
20K → HALF
5:10 | 7:35/mi
25K
2:02:08
15.53 mi
Rank: #15453 (+315)
HALF → 25K
18:57 | 7:49/mi
30K
2:26:42
18.64 mi
Rank: #14930 (+523)
25K → 30K
24:34 | 7:55/mi
20M
2:37:34
20.00 mi
Rank: #14739 (+191)
30K → 20M
10:52 | 8:01/mi
21M
2:45:59
21.00 mi
Rank: #14586 (+153)
20M → 21M
8:25 | 8:25/mi
35K
2:51:40
21.75 mi
Rank: #14445 (+141)
21M → 35K
5:41 | 7:36/mi
23M
3:01:19
23.00 mi
Rank: #14177 (+268)
35K → 23M
9:39 | 7:43/mi
24M
3:08:57
24.00 mi
Rank: #14028 (+149)
23M → 24M
7:38 | 7:38/mi
40K
3:15:37
24.85 mi
Rank: #13903 (+125)
24M → 40K
6:40 | 7:48/mi
25.2M
3:18:30
25.20 mi
Rank: #13843 (+60)
40K → 25.2M
2:53 | 8:22/mi
FINISH
3:26:12
26.22 mi
Rank: #13764 (+79)
25.2M → FINISH
7:42 | 7:34/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:43:11
Pace7:53 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:43:01
Pace7:52 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:5824:457:5824:45
7:58
-
10K
6.21 mi11:20:3649:237:5724:38
7:56
-0:02
15K
9.32 mi11:45:021:13:497:5624:26
7:52
-0:04
20K
12.43 mi12:09:141:38:017:5424:12
7:48
-0:04
HALF
13.11 mi12:14:241:43:117:535:10
7:35
-0:13
25K
15.53 mi12:33:212:02:087:5218:57
7:49
+0:14
30K
18.64 mi12:57:552:26:427:5324:34
7:55
+0:06
20M
20.00 mi13:08:472:37:347:5310:52
8:01
+0:06
21M
21.00 mi13:17:122:45:597:558:25
8:25
+0:24
35K
21.75 mi13:22:532:51:407:545:41
7:36
-0:49
23M
23.00 mi13:32:323:01:197:549:39
7:43
+0:07
24M
24.00 mi13:40:103:08:577:537:38
7:38
-0:05
40K
24.85 mi13:46:503:15:377:536:40
7:48
+0:10
25.2M
25.20 mi13:49:433:18:307:532:53
8:22
+0:34
FINISH
26.22 mi13:57:253:26:127:537:42
7:34
-0:48

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

7:34 /mi

Average Pace

7:52 /mi

Slowest Pace

8:25 /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

3:14:54

95% of race

Time at Steady Pace

11:18

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:52 /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 mi10:55:5824:457:5824:45
7:58
#16670
10K
6.21 mi11:20:3649:237:5724:38
7:56
#16689
15K
9.32 mi11:45:021:13:497:5624:26
7:52
#16424
20K
12.43 mi12:09:141:38:017:5424:12
7:48
#15892
HALF
13.11 mi12:14:241:43:117:535:10
7:35
#15768
25K
15.53 mi12:33:212:02:087:5218:57
7:49
#15453
30K
18.64 mi12:57:552:26:427:5324:34
7:55
#14930
20M
20.00 mi13:08:472:37:347:5310:52
8:01
#14739
21M
21.00 mi13:17:122:45:597:558:25
8:25
#14586
35K
21.75 mi13:22:532:51:407:545:41
7:36
#14445
23M
23.00 mi13:32:323:01:197:549:39
7:43
#14177
24M
24.00 mi13:40:103:08:577:537:38
7:38
#14028
40K
24.85 mi13:46:503:15:377:536:40
7:48
#13903
25.2M
25.20 mi13:49:433:18:307:532:53
8:22
#13843
FINISH
26.22 mi13:57:253:26:127:537:42
7:34
#13764
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi16670108751087515854(Top 55%)10524(Top 64%)10524(Top 563%)
10K6.21 mi3.10 mi16689-1910869+610869+616686(Top 57%)10884(Top 67%)10884(Top 583%)
15K9.32 mi3.11 mi16424+26510756+11310756+11315854(Top 55%)10524(Top 64%)10524(Top 563%)
20K12.43 mi3.11 mi15892+53210537+21910537+21914418(Top 50%)9900(Top 61%)9900(Top 530%)
HALF13.11 mi0.68 mi15768+12410485+5210485+5213599(Top 47%)9632(Top 59%)9632(Top 516%)
25K15.53 mi2.42 mi15453+31510347+13810347+13813937(Top 48%)9633(Top 59%)9633(Top 516%)
30K18.64 mi3.11 mi14930+52310119+22810119+22812792(Top 44%)9016(Top 55%)9016(Top 483%)
20M20.00 mi1.36 mi14739+19110013+10610013+10612827(Top 44%)8940(Top 55%)8940(Top 479%)
21M21.00 mi1.00 mi14586+1539930+839930+8312572(Top 43%)8708(Top 53%)8708(Top 466%)
35K21.75 mi0.75 mi14445+1419866+649866+6411549(Top 40%)8234(Top 50%)8234(Top 441%)
23M23.00 mi1.25 mi14177+2689722+1449722+14410377(Top 36%)7562(Top 46%)7562(Top 405%)
24M24.00 mi1.00 mi14028+1499641+819641+8111078(Top 38%)7838(Top 48%)7838(Top 420%)
40K24.85 mi0.85 mi13903+1259557+849557+8411001(Top 38%)7712(Top 47%)7712(Top 413%)
25.2M25.20 mi0.35 mi13843+609529+289529+2810690(Top 37%)7497(Top 46%)7497(Top 401%)
FINISH26.22 mi1.02 mi13764+799467+629467+6211861(Top 41%)8031(Top 49%)8031(Top 430%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21
+97ft-345ft

Overall

15854

Males

10524

M50-54

10524

5K→10K

3.1 - 6.2 mi

Top 57%
×5
+79ft-138ft

Overall

16686

Males

10884

M50-54

10884

10K→15K

6.2 - 9.3 mi

Top 55%
×3
+67ft-78ft

Overall

15854

Males

10524

M50-54

10524

15K→20K

9.3 - 12.4 mi

Top 50%
×5
+106ft-86ft

Overall

14418

Males

9900

M50-54

9900

20K→HALF

12.4 - 13.1 mi

Top 47%
×2
+19ft-37ft

Overall

13599

Males

9632

M50-54

9632

HALF→25K

13.1 - 15.5 mi

Top 48%
×4
+66ft-88ft

Overall

13937

Males

9633

M50-54

9633

25K→30K

15.5 - 18.6 mi

Top 44%
×9
+181ft-148ft

Overall

12792

Males

9016

M50-54

9016

30K→20M

18.6 - 20.0 mi

Top 44%
×5
+64ft-50ft

Overall

12827

Males

8940

M50-54

8940

20M→21M

20.0 - 21.0 mi

Top 43%
×8
+106ft-24ft

Overall

12572

Males

8708

M50-54

8708

21M→35K

21.0 - 21.8 mi

Top 40%
×7
+17ft-86ft

Overall

11549

Males

8234

M50-54

8234

35K→23M

21.8 - 23.0 mi

Top 36%
×5
+23ft-63ft

Overall

10377

Males

7562

M50-54

7562

23M→24M

23.0 - 24.0 mi

Top 38%
×6
+12ft-82ft

Overall

11078

Males

7838

M50-54

7838

24M→40K

24.0 - 24.9 mi

Top 38%
×1
+6ft-20ft

Overall

11001

Males

7712

M50-54

7712

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1
+13ft-16ft

Overall

10690

Males

7497

M50-54

7497

25.2M→FINISH

25.2 - 26.2 mi

Top 41%
×2
+22ft-21ft

Overall

11861

Males

8031

M50-54

8031

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3392*
Passed By
467
Net Change
+2906
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16670
5K → 10K200200-19#16670#16689
10K → 15K348*83+265#16689#16424
15K → 20K559*27+532#16424#15892
20K → HALF1306+124#15892#15768
HALF → 25K331*16+315#15768#15453
25K → 30K542*19+523#15453#14930
30K → 20M213*22+191#14930#14739
20M → 21M17724+153#14739#14586
21M → 35K1454+141#14586#14445
35K → 23M274*6+268#14445#14177
23M → 24M16213+149#14177#14028
24M → 40K14015+125#14028#13903
40K → 25.2M655+60#13903#13843
25.2M → FINISH10627+79#13843#13764
TOTALS3392*467+2906

* 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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Export & Support

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing