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BOSTON MARATHON 2026

Lukasz Im

Bib: 11355•M

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 33%
Gender (Male)
#0 / 16340
Top 46%
Masters (Masters Men)
#0 / 10617
Top 34%
Age Group (M45-49)
#0 / 2413
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
21:32
3.11 mi
Rank: #7989
Start → 5K
21:32 | 6:56/mi
10K
43:09
6.21 mi
Rank: #8177 (-188)
5K → 10K
21:37 | 6:58/mi
15K
1:06:02
9.32 mi
Rank: #9165 (-988)
10K → 15K
22:53 | 7:22/mi
20K
1:28:18
12.43 mi
Rank: #9125 (+40)
15K → 20K
22:16 | 7:11/mi
HALF
1:33:04
13.11 mi
Rank: #9092 (+33)
20K → HALF
4:46 | 7:00/mi
25K
1:50:40
15.53 mi
Rank: #9091 (+1)
HALF → 25K
17:36 | 7:16/mi
30K
2:13:54
18.64 mi
Rank: #9101 (-10)
25K → 30K
23:14 | 7:29/mi
20M
2:24:16
20.00 mi
Rank: #9138 (-37)
30K → 20M
10:22 | 7:38/mi
21M
2:32:22
21.00 mi
Rank: #9189 (-51)
20M → 21M
8:06 | 8:06/mi
35K
2:37:56
21.75 mi
Rank: #9190 (-1)
21M → 35K
5:34 | 7:27/mi
23M
2:47:44
23.00 mi
Rank: #9243 (-53)
35K → 23M
9:48 | 7:50/mi
24M
2:55:23
24.00 mi
Rank: #9288 (-45)
23M → 24M
7:39 | 7:39/mi
40K
3:02:09
24.85 mi
Rank: #9349 (-61)
24M → 40K
6:46 | 7:55/mi
25.2M
3:05:07
25.20 mi
Rank: #9390 (-41)
40K → 25.2M
2:58 | 8:37/mi
FINISH
3:12:55
26.22 mi
Rank: #9494 (-104)
25.2M → FINISH
7:48 | 7:40/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:33:04
Pace7:06 /mi
2nd Half
Distance13.11 mi
Time1:39:51
Pace7:37 /mi
📊Positive Split: 7.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:39:5521:326:5621:32
6:56
-
10K
6.21 mi11:01:3243:096:5721:37
6:58
+0:02
15K
9.32 mi11:24:251:06:027:0622:53
7:22
+0:24
20K
12.43 mi11:46:411:28:187:0722:16
7:11
-0:11
HALF
13.11 mi11:51:271:33:047:064:46
7:00
-0:11
25K
15.53 mi12:09:031:50:407:0817:36
7:16
+0:16
30K
18.64 mi12:32:172:13:547:1123:14
7:29
+0:13
20M
20.00 mi12:42:392:24:167:1310:22
7:38
+0:09
21M
21.00 mi12:50:452:32:227:168:06
8:06
+0:28
35K
21.75 mi12:56:192:37:567:165:34
7:27
-0:39
23M
23.00 mi13:06:072:47:447:189:48
7:50
+0:23
24M
24.00 mi13:13:462:55:237:197:39
7:39
-0:11
40K
24.85 mi13:20:323:02:097:206:46
7:55
+0:16
25.2M
25.20 mi13:23:303:05:077:212:58
8:37
+0:42
FINISH
26.22 mi13:31:183:12:557:227:48
7:40
-0:57

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

6:56 /mi

Average Pace

7:22 /mi

Slowest Pace

8:37 /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

1:10:11

36% of race

Time at Steady Pace

1:35:06

49% of race

Time at Slower Pace

27:38

14% of race

Average Pace: 7:21 /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 mi10:39:5521:326:5621:32
6:56
#7989
10K
6.21 mi11:01:3243:096:5721:37
6:58
#8177
15K
9.32 mi11:24:251:06:027:0622:53
7:22
#9165
20K
12.43 mi11:46:411:28:187:0722:16
7:11
#9125
HALF
13.11 mi11:51:271:33:047:064:46
7:00
#9092
25K
15.53 mi12:09:031:50:407:0817:36
7:16
#9091
30K
18.64 mi12:32:172:13:547:1123:14
7:29
#9101
20M
20.00 mi12:42:392:24:167:1310:22
7:38
#9138
21M
21.00 mi12:50:452:32:227:168:06
8:06
#9189
35K
21.75 mi12:56:192:37:567:165:34
7:27
#9190
23M
23.00 mi13:06:072:47:447:189:48
7:50
#9243
24M
24.00 mi13:13:462:55:237:197:39
7:39
#9288
40K
24.85 mi13:20:323:02:097:206:46
7:55
#9349
25.2M
25.20 mi13:23:303:05:077:212:58
8:37
#9390
FINISH
26.22 mi13:31:183:12:557:227:48
7:40
#9494
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi79896891689111624(Top 40%)8760(Top 54%)8760(Top 363%)
10K6.21 mi3.10 mi8177-1887010-1197010-1198376(Top 29%)7123(Top 44%)7123(Top 295%)
15K9.32 mi3.11 mi9165-9887609-5997609-59911624(Top 40%)8760(Top 54%)8760(Top 363%)
20K12.43 mi3.11 mi9125+407564+457564+459089(Top 31%)7470(Top 46%)7470(Top 310%)
HALF13.11 mi0.68 mi9092+337545+197545+198610(Top 30%)7257(Top 44%)7257(Top 301%)
25K15.53 mi2.42 mi9091+17518+277518+279351(Top 32%)7515(Top 46%)7515(Top 311%)
30K18.64 mi3.11 mi9101-107478+407478+409485(Top 33%)7420(Top 45%)7420(Top 308%)
20M20.00 mi1.36 mi9138-377459+197459+1910047(Top 35%)7597(Top 46%)7597(Top 315%)
21M21.00 mi1.00 mi9189-517465-67465-610525(Top 36%)7741(Top 47%)7741(Top 321%)
35K21.75 mi0.75 mi9190-17443+227443+2210344(Top 36%)7645(Top 47%)7645(Top 317%)
23M23.00 mi1.25 mi9243-537440+37440+311212(Top 39%)7948(Top 49%)7948(Top 329%)
24M24.00 mi1.00 mi9288-457444-47444-411166(Top 38%)7859(Top 48%)7859(Top 326%)
40K24.85 mi0.85 mi9349-617452-87452-811835(Top 41%)8091(Top 50%)8091(Top 335%)
25.2M25.20 mi0.35 mi9390-417461-97461-912192(Top 42%)8174(Top 50%)8174(Top 339%)
FINISH26.22 mi1.02 mi9494-1047480-197480-1912590(Top 43%)8368(Top 51%)8368(Top 347%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21
+97ft-345ft

Overall

11624

Males

8760

M45-49

8760

5K→10K

3.1 - 6.2 mi

Top 29%
×5
+79ft-138ft

Overall

8376

Males

7123

M45-49

7123

10K→15K

6.2 - 9.3 mi

Top 40%
×3
+67ft-78ft

Overall

11624

Males

8760

M45-49

8760

15K→20K

9.3 - 12.4 mi

Top 31%
×5
+106ft-86ft

Overall

9089

Males

7470

M45-49

7470

20K→HALF

12.4 - 13.1 mi

Top 30%
×2
+19ft-37ft

Overall

8610

Males

7257

M45-49

7257

HALF→25K

13.1 - 15.5 mi

Top 32%
×4
+66ft-88ft

Overall

9351

Males

7515

M45-49

7515

25K→30K

15.5 - 18.6 mi

Top 33%
×9
+181ft-148ft

Overall

9485

Males

7420

M45-49

7420

30K→20M

18.6 - 20.0 mi

Top 35%
×5
+64ft-50ft

Overall

10047

Males

7597

M45-49

7597

20M→21M

20.0 - 21.0 mi

Top 36%
×8
+106ft-24ft

Overall

10525

Males

7741

M45-49

7741

21M→35K

21.0 - 21.8 mi

Top 36%
×7
+17ft-86ft

Overall

10344

Males

7645

M45-49

7645

35K→23M

21.8 - 23.0 mi

Top 39%
×5
+23ft-63ft

Overall

11212

Males

7948

M45-49

7948

23M→24M

23.0 - 24.0 mi

Top 38%
×6
+12ft-82ft

Overall

11166

Males

7859

M45-49

7859

24M→40K

24.0 - 24.9 mi

Top 41%
×1
+6ft-20ft

Overall

11835

Males

8091

M45-49

8091

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1
+13ft-16ft

Overall

12192

Males

8174

M45-49

8174

25.2M→FINISH

25.2 - 26.2 mi

Top 43%
×2
+22ft-21ft

Overall

12590

Males

8368

M45-49

8368

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1069
Passed By
1654
Net Change
-1505
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7989
5K → 10K134200-188#7989#8177
10K → 15K10200-988#8177#9165
15K → 20K153113+40#9165#9125
20K → HALF4310+33#9125#9092
HALF → 25K110109+1#9092#9091
25K → 30K168178-10#9091#9101
30K → 20M89126-37#9101#9138
20M → 21M59110-51#9138#9189
21M → 35K6263-1#9189#9190
35K → 23M82135-53#9190#9243
23M → 24M4893-45#9243#9288
24M → 40K41102-61#9288#9349
40K → 25.2M2566-41#9349#9390
25.2M → FINISH45149-104#9390#9494
TOTALS10691654-1505
📊

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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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing