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BOSTON MARATHON 2026

James Sudlow

Bib: 28915•M

MA

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0:00
/ mi
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Overall
#0 / 29021
Top 15%
Gender (Male)
#0 / 16340
Top 25%
Age Group (M18-39)
#0 / 5723
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
20:53
3.11 mi
Rank: #6082
Start → 5K
20:53 | 6:44/mi
10K
41:46
6.21 mi
Rank: #6110 (-28)
5K → 10K
20:53 | 6:44/mi
15K
1:02:21
9.32 mi
Rank: #5731 (+379)
10K → 15K
20:35 | 6:38/mi
20K
1:23:01
12.43 mi
Rank: #5458 (+273)
15K → 20K
20:40 | 6:40/mi
HALF
1:27:30
13.11 mi
Rank: #5429 (+29)
20K → HALF
4:29 | 6:35/mi
25K
1:43:28
15.53 mi
Rank: #5129 (+300)
HALF → 25K
15:58 | 6:36/mi
30K
2:04:33
18.64 mi
Rank: #4919 (+210)
25K → 30K
21:05 | 6:48/mi
20M
2:13:47
20.00 mi
Rank: #4840 (+79)
30K → 20M
9:14 | 6:48/mi
21M
2:20:50
21.00 mi
Rank: #4736 (+104)
20M → 21M
7:03 | 7:03/mi
35K
2:25:52
21.75 mi
Rank: #4740 (-4)
21M → 35K
5:02 | 6:44/mi
23M
2:34:29
23.00 mi
Rank: #4696 (+44)
35K → 23M
8:37 | 6:54/mi
24M
2:41:10
24.00 mi
Rank: #4638 (+58)
23M → 24M
6:41 | 6:41/mi
40K
2:46:55
24.85 mi
Rank: #4569 (+69)
24M → 40K
5:45 | 6:44/mi
25.2M
2:49:25
25.20 mi
Rank: #4546 (+23)
40K → 25.2M
2:30 | 7:15/mi
FINISH
2:55:56
26.22 mi
Rank: #4474 (+72)
25.2M → FINISH
6:31 | 6:24/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:27:30
Pace6:41 /mi
2nd Half
Distance13.11 mi
Time1:28:26
Pace6:45 /mi
📊Positive Split: 1.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:1320:536:4420:53
6:44
-
10K
6.21 mi12:04:0641:466:4420:53
6:44
0:00
15K
9.32 mi12:24:411:02:216:4220:35
6:38
-0:06
20K
12.43 mi12:45:211:23:016:4120:40
6:40
+0:02
HALF
13.11 mi12:49:501:27:306:414:29
6:35
-0:05
25K
15.53 mi13:05:481:43:286:4015:58
6:36
+0:01
30K
18.64 mi13:26:532:04:336:4121:05
6:48
+0:12
20M
20.00 mi13:36:072:13:476:429:14
6:48
0:00
21M
21.00 mi13:43:102:20:506:437:03
7:03
+0:15
35K
21.75 mi13:48:122:25:526:435:02
6:44
-0:19
23M
23.00 mi13:56:492:34:296:448:37
6:54
+0:10
24M
24.00 mi14:03:302:41:106:436:41
6:41
-0:13
40K
24.85 mi14:09:152:46:556:435:45
6:44
+0:03
25.2M
25.20 mi14:11:452:49:256:442:30
7:15
+0:31
FINISH
26.22 mi14:18:162:55:566:436:31
6:24
-0:51

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

6:24 /mi

Average Pace

6:43 /mi

Slowest Pace

7:15 /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

2:46:23

95% of race

Time at Steady Pace

9:33

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:43 /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 mi11:43:1320:536:4420:53
6:44
#6082
10K
6.21 mi12:04:0641:466:4420:53
6:44
#6110
15K
9.32 mi12:24:411:02:216:4220:35
6:38
#5731
20K
12.43 mi12:45:211:23:016:4120:40
6:40
#5458
HALF
13.11 mi12:49:501:27:306:414:29
6:35
#5429
25K
15.53 mi13:05:481:43:286:4015:58
6:36
#5129
30K
18.64 mi13:26:532:04:336:4121:05
6:48
#4919
20M
20.00 mi13:36:072:13:476:429:14
6:48
#4840
21M
21.00 mi13:43:102:20:506:437:03
7:03
#4736
35K
21.75 mi13:48:122:25:526:435:02
6:44
#4740
23M
23.00 mi13:56:492:34:296:448:37
6:54
#4696
24M
24.00 mi14:03:302:41:106:436:41
6:41
#4638
40K
24.85 mi14:09:152:46:556:435:45
6:44
#4569
25.2M
25.20 mi14:11:452:49:256:442:30
7:15
#4546
FINISH
26.22 mi14:18:162:55:566:436:31
6:24
#4474
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6082553755375102(Top 18%)4745(Top 29%)4745(Top 83%)
10K6.21 mi3.10 mi6110-285555-185555-186163(Top 21%)5584(Top 34%)5584(Top 98%)
15K9.32 mi3.11 mi5731+3795267+2885267+2885102(Top 18%)4745(Top 29%)4745(Top 83%)
20K12.43 mi3.11 mi5458+2735040+2275040+2274803(Top 17%)4484(Top 27%)4484(Top 78%)
HALF13.11 mi0.68 mi5429+295015+255015+255013(Top 17%)4643(Top 28%)4643(Top 81%)
25K15.53 mi2.42 mi5129+3004766+2494766+2494019(Top 14%)3774(Top 23%)3774(Top 66%)
30K18.64 mi3.11 mi4919+2104578+1884578+1884272(Top 15%)3948(Top 24%)3948(Top 69%)
20M20.00 mi1.36 mi4840+794501+774501+774120(Top 14%)3778(Top 23%)3778(Top 66%)
21M21.00 mi1.00 mi4736+1044402+994402+993751(Top 13%)3419(Top 21%)3419(Top 60%)
35K21.75 mi0.75 mi4740-44398+44398+45112(Top 18%)4511(Top 28%)4511(Top 79%)
23M23.00 mi1.25 mi4696+444347+514347+514636(Top 16%)4108(Top 25%)4108(Top 72%)
24M24.00 mi1.00 mi4638+584289+584289+584312(Top 15%)3809(Top 23%)3809(Top 67%)
40K24.85 mi0.85 mi4569+694220+694220+693736(Top 13%)3319(Top 20%)3319(Top 58%)
25.2M25.20 mi0.35 mi4546+234198+224198+223818(Top 13%)3333(Top 20%)3333(Top 58%)
FINISH26.22 mi1.02 mi4474+724124+744124+743550(Top 12%)3116(Top 19%)3116(Top 54%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21
+97ft-345ft

Overall

5102

Males

4745

M18-39

4745

5K→10K

3.1 - 6.2 mi

Top 21%
×5
+79ft-138ft

Overall

6163

Males

5584

M18-39

5584

10K→15K

6.2 - 9.3 mi

Top 18%
×3
+67ft-78ft

Overall

5102

Males

4745

M18-39

4745

15K→20K

9.3 - 12.4 mi

Top 17%
×5
+106ft-86ft

Overall

4803

Males

4484

M18-39

4484

20K→HALF

12.4 - 13.1 mi

Top 17%
×2
+19ft-37ft

Overall

5013

Males

4643

M18-39

4643

HALF→25K

13.1 - 15.5 mi

Top 14%
×4
+66ft-88ft

Overall

4019

Males

3774

M18-39

3774

25K→30K

15.5 - 18.6 mi

Top 15%
×9
+181ft-148ft

Overall

4272

Males

3948

M18-39

3948

30K→20M

18.6 - 20.0 mi

Top 14%
×5
+64ft-50ft

Overall

4120

Males

3778

M18-39

3778

20M→21M

20.0 - 21.0 mi

Top 13%
×8
+106ft-24ft

Overall

3751

Males

3419

M18-39

3419

21M→35K

21.0 - 21.8 mi

Top 18%
×7
+17ft-86ft

Overall

5112

Males

4511

M18-39

4511

35K→23M

21.8 - 23.0 mi

Top 16%
×5
+23ft-63ft

Overall

4636

Males

4108

M18-39

4108

23M→24M

23.0 - 24.0 mi

Top 15%
×6
+12ft-82ft

Overall

4312

Males

3809

M18-39

3809

24M→40K

24.0 - 24.9 mi

Top 13%
×1
+6ft-20ft

Overall

3736

Males

3319

M18-39

3319

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1
+13ft-16ft

Overall

3818

Males

3333

M18-39

3333

25.2M→FINISH

25.2 - 26.2 mi

Top 12%
×2
+22ft-21ft

Overall

3550

Males

3116

M18-39

3116

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2087
Passed By
479
Net Change
+1608
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6082
5K → 10K184212-28#6082#6110
10K → 15K39617+379#6110#5731
15K → 20K28512+273#5731#5458
20K → HALF378+29#5458#5429
HALF → 25K3055+300#5429#5129
25K → 30K23929+210#5129#4919
30K → 20M10021+79#4919#4840
20M → 21M11410+104#4840#4736
21M → 35K4246-4#4736#4740
35K → 23M9046+44#4740#4696
23M → 24M8325+58#4696#4638
24M → 40K8415+69#4638#4569
40K → 25.2M318+23#4569#4546
25.2M → FINISH9725+72#4546#4474
TOTALS2087479+1608
📊

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