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BOSTON MARATHON 2026

Cai Wei

Bib: 19023•M

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M55-59)
#0 / 1491
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
24:24
3.11 mi
Rank: #15875
Start → 5K
24:24 | 7:52/mi
10K
49:04
6.21 mi
Rank: #16276 (-401)
5K → 10K
24:40 | 7:57/mi
15K
1:14:35
9.32 mi
Rank: #17073 (-797)
10K → 15K
25:31 | 8:13/mi
20K
1:42:24
12.43 mi
Rank: #18413 (-1340)
15K → 20K
27:49 | 8:58/mi
HALF
1:48:27
13.11 mi
Rank: #18603 (-190)
20K → HALF
6:03 | 8:53/mi
25K
2:15:38
15.53 mi
Rank: #20981 (-2378)
HALF → 25K
27:11 | 11:13/mi
30K
2:52:55
18.64 mi
Rank: #22906 (-1925)
25K → 30K
37:17 | 12:01/mi
20M
3:10:15
20.00 mi
Rank: #23475 (-569)
30K → 20M
17:20 | 12:46/mi
21M
3:23:45
21.00 mi
Rank: #23760 (-285)
20M → 21M
13:30 | 13:30/mi
35K
3:32:14
21.75 mi
Rank: #23874 (-114)
21M → 35K
8:29 | 11:21/mi
23M
3:47:01
23.00 mi
Rank: #24025 (-151)
35K → 23M
14:47 | 11:49/mi
24M
3:58:10
24.00 mi
Rank: #24107 (-82)
23M → 24M
11:09 | 11:09/mi
40K
4:07:37
24.85 mi
Rank: #24120 (-13)
24M → 40K
9:27 | 11:04/mi
25.2M
4:11:38
25.20 mi
Rank: #24114 (+6)
40K → 25.2M
4:01 | 11:39/mi
FINISH
4:20:56
26.22 mi
Rank: #24014 (+100)
25.2M → FINISH
9:18 | 9:08/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:48:27
Pace8:17 /mi
2nd Half
Distance13.11 mi
Time2:32:29
Pace11:38 /mi
📊Positive Split: 40.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:07:1124:247:5224:24
7:52
-
10K
6.21 mi11:31:5149:047:5424:40
7:57
+0:05
15K
9.32 mi11:57:221:14:358:0125:31
8:13
+0:16
20K
12.43 mi12:25:111:42:248:1527:49
8:58
+0:45
HALF
13.11 mi12:31:141:48:278:176:03
8:53
-0:05
25K
15.53 mi12:58:252:15:388:4427:11
11:13
+2:20
30K
18.64 mi13:35:422:52:559:1737:17
12:01
+0:48
20M
20.00 mi13:53:023:10:159:3117:20
12:46
+0:45
21M
21.00 mi14:06:323:23:459:4313:30
13:30
+0:44
35K
21.75 mi14:15:013:32:149:468:29
11:21
-2:09
23M
23.00 mi14:29:483:47:019:5314:47
11:49
+0:28
24M
24.00 mi14:40:573:58:109:5611:09
11:09
-0:40
40K
24.85 mi14:50:244:07:379:589:27
11:04
-0:05
25.2M
25.20 mi14:54:254:11:3810:004:01
11:39
+0:35
FINISH
26.22 mi15:03:434:20:569:589:18
9:08
-2:31

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

7:52 /mi

Average Pace

9:58 /mi

Slowest Pace

13:30 /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

1:57:45

45% of race

Time at Steady Pace

1:52:21

43% of race

Time at Slower Pace

30:50

12% of race

Average Pace: 9:57 /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 mi11:07:1124:247:5224:24
7:52
#15875
10K
6.21 mi11:31:5149:047:5424:40
7:57
#16276
15K
9.32 mi11:57:221:14:358:0125:31
8:13
#17073
20K
12.43 mi12:25:111:42:248:1527:49
8:58
#18413
HALF
13.11 mi12:31:141:48:278:176:03
8:53
#18603
25K
15.53 mi12:58:252:15:388:4427:11
11:13
#20981
30K
18.64 mi13:35:422:52:559:1737:17
12:01
#22906
20M
20.00 mi13:53:023:10:159:3117:20
12:46
#23475
21M
21.00 mi14:06:323:23:459:4313:30
13:30
#23760
35K
21.75 mi14:15:013:32:149:468:29
11:21
#23874
23M
23.00 mi14:29:483:47:019:5314:47
11:49
#24025
24M
24.00 mi14:40:573:58:109:5611:09
11:09
#24107
40K
24.85 mi14:50:244:07:379:589:27
11:04
#24120
25.2M
25.20 mi14:54:254:11:3810:004:01
11:39
#24114
FINISH
26.22 mi15:03:434:20:569:589:18
9:08
#24014
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi15875105811058118415(Top 63%)11628(Top 71%)11628(Top 780%)
10K6.21 mi3.10 mi16276-40110711-13010711-13016771(Top 58%)10925(Top 67%)10925(Top 733%)
15K9.32 mi3.11 mi17073-79711031-32011031-32018415(Top 63%)11628(Top 71%)11628(Top 780%)
20K12.43 mi3.11 mi18413-134011624-59311624-59321722(Top 75%)13111(Top 80%)13111(Top 879%)
HALF13.11 mi0.68 mi18603-19011693-6911693-6922172(Top 76%)13367(Top 82%)13367(Top 897%)
25K15.53 mi2.42 mi20981-237812738-104512738-104526630(Top 92%)15364(Top 94%)15364(Top 1030%)
30K18.64 mi3.11 mi22906-192513658-92013658-92026770(Top 92%)15340(Top 94%)15340(Top 1029%)
20M20.00 mi1.36 mi23475-56913916-25813916-25827206(Top 94%)15499(Top 95%)15499(Top 1040%)
21M21.00 mi1.00 mi23760-28514067-15114067-15126878(Top 93%)15288(Top 94%)15288(Top 1025%)
35K21.75 mi0.75 mi23874-11414109-4214109-4225796(Top 89%)14766(Top 90%)14766(Top 990%)
23M23.00 mi1.25 mi24025-15114163-5414163-5425877(Top 89%)14774(Top 90%)14774(Top 991%)
24M24.00 mi1.00 mi24107-8214179-1614179-1625382(Top 87%)14497(Top 89%)14497(Top 972%)
40K24.85 mi0.85 mi24120-1314171+814171+824353(Top 84%)13953(Top 85%)13953(Top 936%)
25.2M25.20 mi0.35 mi24114+614161+1014161+1023783(Top 82%)13667(Top 84%)13667(Top 917%)
FINISH26.22 mi1.02 mi24014+10014099+6214099+6221029(Top 72%)12368(Top 76%)12368(Top 830%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21
+97ft-345ft

Overall

18415

Males

11628

M55-59

11628

5K→10K

3.1 - 6.2 mi

Top 58%
×5
+79ft-138ft

Overall

16771

Males

10925

M55-59

10925

10K→15K

6.2 - 9.3 mi

Top 63%
×3
+67ft-78ft

Overall

18415

Males

11628

M55-59

11628

15K→20K

9.3 - 12.4 mi

Top 75%
×5
+106ft-86ft

Overall

21722

Males

13111

M55-59

13111

20K→HALF

12.4 - 13.1 mi

Top 76%
×2
+19ft-37ft

Overall

22172

Males

13367

M55-59

13367

HALF→25K

13.1 - 15.5 mi

Top 92%
×4
+66ft-88ft

Overall

26630

Males

15364

M55-59

15364

25K→30K

15.5 - 18.6 mi

Top 92%
×9
+181ft-148ft

Overall

26770

Males

15340

M55-59

15340

30K→20M

18.6 - 20.0 mi

Top 94%
×5
+64ft-50ft

Overall

27206

Males

15499

M55-59

15499

20M→21M

20.0 - 21.0 mi

Top 93%
×8
+106ft-24ft

Overall

26878

Males

15288

M55-59

15288

21M→35K

21.0 - 21.8 mi

Top 89%
×7
+17ft-86ft

Overall

25796

Males

14766

M55-59

14766

35K→23M

21.8 - 23.0 mi

Top 89%
×5
+23ft-63ft

Overall

25877

Males

14774

M55-59

14774

23M→24M

23.0 - 24.0 mi

Top 87%
×6
+12ft-82ft

Overall

25382

Males

14497

M55-59

14497

24M→40K

24.0 - 24.9 mi

Top 84%
×1
+6ft-20ft

Overall

24353

Males

13953

M55-59

13953

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1
+13ft-16ft

Overall

23783

Males

13667

M55-59

13667

25.2M→FINISH

25.2 - 26.2 mi

Top 72%
×2
+22ft-21ft

Overall

21029

Males

12368

M55-59

12368

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
478
Passed By
8617
Net Change
-8139
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15875
5K → 10K135536-401#15875#16276
10K → 15K43840-797#16276#17073
15K → 20K181358-1340#17073#18413
20K → HALF4194-190#18413#18603
HALF → 25K22380-2378#18603#20981
25K → 30K101935-1925#20981#22906
30K → 20M7576-569#22906#23475
20M → 21M11296-285#23475#23760
21M → 35K13127-114#23760#23874
35K → 23M34185-151#23874#24025
23M → 24M30112-82#24025#24107
24M → 40K4255-13#24107#24120
40K → 25.2M2216+6#24120#24114
25.2M → FINISH1077+100#24114#24014
TOTALS4788617-8139
📊

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