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BOSTON MARATHON 2026

Jian Dai

Bib: 22954•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 (M60-64)
#0 / 1514
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
26:31
3.11 mi
Rank: #20280
Start → 5K
26:31 | 8:33/mi
10K
52:43
6.21 mi
Rank: #20081 (+199)
5K → 10K
26:12 | 8:26/mi
15K
1:19:32
9.32 mi
Rank: #20315 (-234)
10K → 15K
26:49 | 8:38/mi
20K
1:47:18
12.43 mi
Rank: #20688 (-373)
15K → 20K
27:46 | 8:57/mi
HALF
1:53:21
13.11 mi
Rank: #20769 (-81)
20K → HALF
6:03 | 8:53/mi
25K
2:16:41
15.53 mi
Rank: #21309 (-540)
HALF → 25K
23:20 | 9:38/mi
30K
2:46:15
18.64 mi
Rank: #21392 (-83)
25K → 30K
29:34 | 9:31/mi
20M
2:59:13
20.00 mi
Rank: #21369 (+23)
30K → 20M
12:58 | 9:33/mi
21M
3:09:39
21.00 mi
Rank: #21419 (-50)
20M → 21M
10:26 | 10:26/mi
35K
3:16:43
21.75 mi
Rank: #21441 (-22)
21M → 35K
7:04 | 9:27/mi
23M
3:29:08
23.00 mi
Rank: #21487 (-46)
35K → 23M
12:25 | 9:56/mi
24M
3:38:47
24.00 mi
Rank: #21528 (-41)
23M → 24M
9:39 | 9:39/mi
40K
3:47:01
24.85 mi
Rank: #21529 (-1)
24M → 40K
8:14 | 9:38/mi
25.2M
3:50:36
25.20 mi
Rank: #21525 (+4)
40K → 25.2M
3:35 | 10:24/mi
FINISH
3:59:41
26.22 mi
Rank: #21513 (+12)
25.2M → FINISH
9:05 | 8:55/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:53:21
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time2:06:20
Pace9:39 /mi
📊Positive Split: 11.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:5926:318:3326:31
8:33
-
10K
6.21 mi11:55:1152:438:3026:12
8:26
-0:07
15K
9.32 mi12:22:001:19:328:3226:49
8:38
+0:12
20K
12.43 mi12:49:461:47:188:3927:46
8:57
+0:19
HALF
13.11 mi12:55:491:53:218:396:03
8:53
-0:04
25K
15.53 mi13:19:092:16:418:4823:20
9:38
+0:45
30K
18.64 mi13:48:432:46:158:5629:34
9:31
-0:07
20M
20.00 mi14:01:412:59:138:5812:58
9:33
+0:02
21M
21.00 mi14:12:073:09:399:0210:26
10:26
+0:53
35K
21.75 mi14:19:113:16:439:037:04
9:27
-0:59
23M
23.00 mi14:31:363:29:089:0612:25
9:56
+0:29
24M
24.00 mi14:41:153:38:479:079:39
9:39
-0:17
40K
24.85 mi14:49:293:47:019:098:14
9:38
-0:01
25.2M
25.20 mi14:53:043:50:369:103:35
10:24
+0:46
FINISH
26.22 mi15:02:093:59:419:099:05
8:55
-1:29

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

8:26 /mi

Average Pace

9:09 /mi

Slowest Pace

10:26 /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

2:02:26

51% of race

Time at Steady Pace

1:30:49

38% of race

Time at Slower Pace

26:26

11% of race

Average Pace: 9:08 /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 mi11:28:5926:318:3326:31
8:33
#20280
10K
6.21 mi11:55:1152:438:3026:12
8:26
#20081
15K
9.32 mi12:22:001:19:328:3226:49
8:38
#20315
20K
12.43 mi12:49:461:47:188:3927:46
8:57
#20688
HALF
13.11 mi12:55:491:53:218:396:03
8:53
#20769
25K
15.53 mi13:19:092:16:418:4823:20
9:38
#21309
30K
18.64 mi13:48:432:46:158:5629:34
9:31
#21392
20M
20.00 mi14:01:412:59:138:5812:58
9:33
#21369
21M
21.00 mi14:12:073:09:399:0210:26
10:26
#21419
35K
21.75 mi14:19:113:16:439:037:04
9:27
#21441
23M
23.00 mi14:31:363:29:089:0612:25
9:56
#21487
24M
24.00 mi14:41:153:38:479:079:39
9:39
#21528
40K
24.85 mi14:49:293:47:019:098:14
9:38
#21529
25.2M
25.20 mi14:53:043:50:369:103:35
10:24
#21525
FINISH
26.22 mi15:02:093:59:419:099:05
8:55
#21513
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi20280124051240520827(Top 72%)12721(Top 78%)12721(Top 840%)
10K6.21 mi3.10 mi20081+19912343+6212343+6219970(Top 69%)12308(Top 75%)12308(Top 813%)
15K9.32 mi3.11 mi20315-23412460-11712460-11720827(Top 72%)12721(Top 78%)12721(Top 840%)
20K12.43 mi3.11 mi20688-37312613-15312613-15321643(Top 75%)13074(Top 80%)13074(Top 864%)
HALF13.11 mi0.68 mi20769-8112652-3912652-3922139(Top 76%)13334(Top 82%)13334(Top 881%)
25K15.53 mi2.42 mi21309-54012895-24312895-24323346(Top 80%)13867(Top 85%)13867(Top 916%)
30K18.64 mi3.11 mi21392-8312930-3512930-3521690(Top 75%)12988(Top 79%)12988(Top 858%)
20M20.00 mi1.36 mi21369+2312900+3012900+3021216(Top 73%)12679(Top 78%)12679(Top 837%)
21M21.00 mi1.00 mi21419-5012918-1812918-1821762(Top 75%)12908(Top 79%)12908(Top 853%)
35K21.75 mi0.75 mi21441-2212921-312921-321574(Top 74%)12761(Top 78%)12761(Top 843%)
23M23.00 mi1.25 mi21487-4612943-2212943-2221904(Top 75%)12876(Top 79%)12876(Top 850%)
24M24.00 mi1.00 mi21528-4112942+112942+121815(Top 75%)12791(Top 78%)12791(Top 845%)
40K24.85 mi0.85 mi21529-112930+1212930+1220819(Top 72%)12263(Top 75%)12263(Top 810%)
25.2M25.20 mi0.35 mi21525+412925+512925+520714(Top 71%)12217(Top 75%)12217(Top 807%)
FINISH26.22 mi1.02 mi21513+1212918+712918+720152(Top 69%)11927(Top 73%)11927(Top 788%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 72%
×21
+97ft-345ft

Overall

20827

Males

12721

M60-64

12721

5K→10K

3.1 - 6.2 mi

Top 69%
×5
+79ft-138ft

Overall

19970

Males

12308

M60-64

12308

10K→15K

6.2 - 9.3 mi

Top 72%
×3
+67ft-78ft

Overall

20827

Males

12721

M60-64

12721

15K→20K

9.3 - 12.4 mi

Top 75%
×5
+106ft-86ft

Overall

21643

Males

13074

M60-64

13074

20K→HALF

12.4 - 13.1 mi

Top 76%
×2
+19ft-37ft

Overall

22139

Males

13334

M60-64

13334

HALF→25K

13.1 - 15.5 mi

Top 80%
×4
+66ft-88ft

Overall

23346

Males

13867

M60-64

13867

25K→30K

15.5 - 18.6 mi

Top 75%
×9
+181ft-148ft

Overall

21690

Males

12988

M60-64

12988

30K→20M

18.6 - 20.0 mi

Top 73%
×5
+64ft-50ft

Overall

21216

Males

12679

M60-64

12679

20M→21M

20.0 - 21.0 mi

Top 75%
×8
+106ft-24ft

Overall

21762

Males

12908

M60-64

12908

21M→35K

21.0 - 21.8 mi

Top 74%
×7
+17ft-86ft

Overall

21574

Males

12761

M60-64

12761

35K→23M

21.8 - 23.0 mi

Top 75%
×5
+23ft-63ft

Overall

21904

Males

12876

M60-64

12876

23M→24M

23.0 - 24.0 mi

Top 75%
×6
+12ft-82ft

Overall

21815

Males

12791

M60-64

12791

24M→40K

24.0 - 24.9 mi

Top 72%
×1
+6ft-20ft

Overall

20819

Males

12263

M60-64

12263

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1
+13ft-16ft

Overall

20714

Males

12217

M60-64

12217

25.2M→FINISH

25.2 - 26.2 mi

Top 69%
×2
+22ft-21ft

Overall

20152

Males

11927

M60-64

11927

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1154*
Passed By
1627
Net Change
-1233
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20280
5K → 10K381*182+199#20280#20081
10K → 15K100200-234#20081#20315
15K → 20K72200-373#20315#20688
20K → HALF1394-81#20688#20769
HALF → 25K24200-540#20769#21309
25K → 30K134200-83#21309#21392
30K → 20M10178+23#21392#21369
20M → 21M66116-50#21369#21419
21M → 35K3254-22#21419#21441
35K → 23M61107-46#21441#21487
23M → 24M3778-41#21487#21528
24M → 40K5556-1#21528#21529
40K → 25.2M2622+4#21529#21525
25.2M → FINISH5240+12#21525#21513
TOTALS1154*1627-1233

* 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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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing