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BOSTON MARATHON 2026

David Chow

Bib: 14700β€’M

BC

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 46%
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Top 48%
Age Group (M50-54)
#0 / 1868
Race Day Weather
51Β°/41Β°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
24:56
3.11 mi
Rank: #17111
Start β†’ 5K
24:56 | 8:02/mi
10K
50:05
6.21 mi
Rank: #17503 (-392)
5K β†’ 10K
25:09 | 8:06/mi
15K
1:14:16
9.32 mi
Rank: #16803 (+700)
10K β†’ 15K
24:11 | 7:48/mi
20K
1:38:36
12.43 mi
Rank: #16285 (+518)
15K β†’ 20K
24:20 | 7:50/mi
HALF
1:43:50
13.11 mi
Rank: #16197 (+88)
20K β†’ HALF
5:14 | 7:41/mi
25K
2:02:49
15.53 mi
Rank: #15822 (+375)
HALF β†’ 25K
18:59 | 7:50/mi
30K
2:26:58
18.64 mi
Rank: #15042 (+780)
25K β†’ 30K
24:09 | 7:47/mi
20M
2:37:34
20.00 mi
Rank: #14737 (+305)
30K β†’ 20M
10:36 | 7:49/mi
21M
2:45:35
21.00 mi
Rank: #14410 (+327)
20M β†’ 21M
8:01 | 8:01/mi
35K
2:51:14
21.75 mi
Rank: #14276 (+134)
21M β†’ 35K
5:39 | 7:34/mi
23M
3:01:04
23.00 mi
Rank: #14080 (+196)
35K β†’ 23M
9:50 | 7:52/mi
24M
3:08:32
24.00 mi
Rank: #13900 (+180)
23M β†’ 24M
7:28 | 7:28/mi
40K
3:14:55
24.85 mi
Rank: #13691 (+209)
24M β†’ 40K
6:23 | 7:28/mi
25.2M
3:17:41
25.20 mi
Rank: #13596 (+95)
40K β†’ 25.2M
2:46 | 8:02/mi
FINISH
3:24:26
26.22 mi
Rank: #13204 (+392)
25.2M β†’ FINISH
6:45 | 6:38/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time1:43:50
Pace7:56 /mi
2nd Halfβœ“ Faster
Distance13.11 mi
Time1:40:36
Pace7:41 /mi
πŸ“ŠNegative Split: 3.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:5124:568:0224:56
8:02
-
10K
6.21 mi11:22:0050:058:0425:09
8:06
+0:04
15K
9.32 mi11:46:111:14:167:5924:11
7:48
-0:18
20K
12.43 mi12:10:311:38:367:5724:20
7:50
+0:02
HALF
13.11 mi12:15:451:43:507:565:14
7:41
-0:09
25K
15.53 mi12:34:442:02:497:5518:59
7:50
+0:09
30K
18.64 mi12:58:532:26:587:5424:09
7:47
-0:03
20M
20.00 mi13:09:292:37:347:5310:36
7:49
+0:02
21M
21.00 mi13:17:302:45:357:548:01
8:01
+0:12
35K
21.75 mi13:23:092:51:147:535:39
7:34
-0:27
23M
23.00 mi13:32:593:01:047:539:50
7:52
+0:18
24M
24.00 mi13:40:273:08:327:527:28
7:28
-0:24
40K
24.85 mi13:46:503:14:557:516:23
7:28
0:00
25.2M
25.20 mi13:49:363:17:417:512:46
8:02
+0:34
FINISH
26.22 mi13:56:213:24:267:496:45
6:38
-1:24

Checkpoint Splits Visualizations

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

πŸ“ˆPace 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

6:38 /mi

Average Pace

7:48 /mi

Slowest Pace

8:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

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

26:15

13% of race

Time at Steady Pace

1:57:19

57% of race

Time at Slower Pace

1:00:52

30% of race

Average Pace: 7:48 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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 mi10:56:5124:568:0224:56
8:02
#17111
10K
6.21 mi11:22:0050:058:0425:09
8:06
#17503
15K
9.32 mi11:46:111:14:167:5924:11
7:48
#16803
20K
12.43 mi12:10:311:38:367:5724:20
7:50
#16285
HALF
13.11 mi12:15:451:43:507:565:14
7:41
#16197
25K
15.53 mi12:34:442:02:497:5518:59
7:50
#15822
30K
18.64 mi12:58:532:26:587:5424:09
7:47
#15042
20M
20.00 mi13:09:292:37:347:5310:36
7:49
#14737
21M
21.00 mi13:17:302:45:357:548:01
8:01
#14410
35K
21.75 mi13:23:092:51:147:535:39
7:34
#14276
23M
23.00 mi13:32:593:01:047:539:50
7:52
#14080
24M
24.00 mi13:40:273:08:327:527:28
7:28
#13900
40K
24.85 mi13:46:503:14:557:516:23
7:28
#13691
25.2M
25.20 mi13:49:363:17:417:512:46
8:02
#13596
FINISH
26.22 mi13:56:213:24:267:496:45
6:38
#13204
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 mi17111110511105115190(Top 52%)10257(Top 63%)10257(Top 549%)
10K6.21 mi3.10 mi17503-39211215-16411215-16417912(Top 62%)11393(Top 70%)11393(Top 610%)
15K9.32 mi3.11 mi16803+70010924+29110924+29115190(Top 52%)10257(Top 63%)10257(Top 549%)
20K12.43 mi3.11 mi16285+51810692+23210692+23214770(Top 51%)10047(Top 61%)10047(Top 538%)
HALF13.11 mi0.68 mi16197+8810657+3510657+3514457(Top 50%)9966(Top 61%)9966(Top 534%)
25K15.53 mi2.42 mi15822+37510495+16210495+16214038(Top 48%)9663(Top 59%)9663(Top 517%)
30K18.64 mi3.11 mi15042+78010163+33210163+33211775(Top 41%)8563(Top 52%)8563(Top 458%)
20M20.00 mi1.36 mi14737+30510011+15210011+15211364(Top 39%)8251(Top 50%)8251(Top 442%)
21M21.00 mi1.00 mi14410+3279875+1369875+1369990(Top 34%)7471(Top 46%)7471(Top 400%)
35K21.75 mi0.75 mi14276+1349796+799796+7911237(Top 39%)8083(Top 49%)8083(Top 433%)
23M23.00 mi1.25 mi14080+1969684+1129684+11211428(Top 39%)8082(Top 49%)8082(Top 433%)
24M24.00 mi1.00 mi13900+1809583+1019583+1019822(Top 34%)7215(Top 44%)7215(Top 386%)
40K24.85 mi0.85 mi13691+2099475+1089475+1088615(Top 30%)6516(Top 40%)6516(Top 349%)
25.2M25.20 mi0.35 mi13596+959421+549421+548489(Top 29%)6385(Top 39%)6385(Top 342%)
FINISH26.22 mi1.02 mi13204+3929230+1919230+1914935(Top 17%)4150(Top 25%)4150(Top 222%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
Γ—21
+97ft-345ft

Overall

15190

Males

10257

M50-54

10257

5K→10K

3.1 - 6.2 mi

Top 62%
Γ—5
+79ft-138ft

Overall

17912

Males

11393

M50-54

11393

10K→15K

6.2 - 9.3 mi

Top 52%
Γ—3
+67ft-78ft

Overall

15190

Males

10257

M50-54

10257

15K→20K

9.3 - 12.4 mi

Top 51%
Γ—5
+106ft-86ft

Overall

14770

Males

10047

M50-54

10047

20K→HALF

12.4 - 13.1 mi

Top 50%
Γ—2
+19ft-37ft

Overall

14457

Males

9966

M50-54

9966

HALF→25K

13.1 - 15.5 mi

Top 48%
Γ—4
+66ft-88ft

Overall

14038

Males

9663

M50-54

9663

25K→30K

15.5 - 18.6 mi

Top 41%
Γ—9
+181ft-148ft

Overall

11775

Males

8563

M50-54

8563

30K→20M

18.6 - 20.0 mi

Top 39%
Γ—5
+64ft-50ft

Overall

11364

Males

8251

M50-54

8251

20M→21M

20.0 - 21.0 mi

Top 34%
Γ—8
+106ft-24ft

Overall

9990

Males

7471

M50-54

7471

21M→35K

21.0 - 21.8 mi

Top 39%
Γ—7
+17ft-86ft

Overall

11237

Males

8083

M50-54

8083

35K→23M

21.8 - 23.0 mi

Top 39%
Γ—5
+23ft-63ft

Overall

11428

Males

8082

M50-54

8082

23M→24M

23.0 - 24.0 mi

Top 34%
Γ—6
+12ft-82ft

Overall

9822

Males

7215

M50-54

7215

24M→40K

24.0 - 24.9 mi

Top 30%
Γ—1
+6ft-20ft

Overall

8615

Males

6516

M50-54

6516

40K→25.2M

24.9 - 25.2 mi

Top 29%
Γ—1
+13ft-16ft

Overall

8489

Males

6385

M50-54

6385

25.2M→FINISH

25.2 - 26.2 mi

Top 17%
Γ—2
+22ft-21ft

Overall

4935

Males

4150

M50-54

4150

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
4540*
Passed By
306
Net Change
+3907
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#17111
5K β†’ 10K135200-392#17111#17503
10K β†’ 15K725*25+700#17503#16803
15K β†’ 20K539*21+518#16803#16285
20K β†’ HALF9810+88#16285#16197
HALF β†’ 25K388*13+375#16197#15822
25K β†’ 30K784*4+780#15822#15042
30K β†’ 20M311*6+305#15042#14737
20M β†’ 21M330*3+327#14737#14410
21M β†’ 35K1373+134#14410#14276
35K β†’ 23M209*13+196#14276#14080
23M β†’ 24M1844+180#14080#13900
24M β†’ 40K209*0+209#13900#13691
40K β†’ 25.2M983+95#13691#13596
25.2M β†’ FINISH393*1+392#13596#13204
TOTALS4540*306+3907

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

πŸ“Š

Passing Analysis Visualizations

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

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing