Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing

Ian Choi

Bib: 28779MAge: N/A

MA

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
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
25:59
3.11 mi
Rank: #19270
Start5K
25:59 | 8:22/mi
10K
51:11
6.21 mi
Rank: #18617 (+653)
5K10K
25:12 | 8:07/mi
15K
1:16:00
9.32 mi
Rank: #18087 (+530)
10K15K
24:49 | 8:00/mi
20K
1:40:05
12.43 mi
Rank: #17218 (+869)
15K20K
24:05 | 7:46/mi
HALF
1:45:18
13.11 mi
Rank: #17043 (+175)
20KHALF
5:13 | 7:40/mi
25K
2:04:30
15.53 mi
Rank: #16675 (+368)
HALF25K
19:12 | 7:56/mi
30K
2:29:37
18.64 mi
Rank: #16179 (+496)
25K30K
25:07 | 8:06/mi
20M
2:40:52
20.00 mi
Rank: #16081 (+98)
30K20M
11:15 | 8:17/mi
21M
2:49:17
21.00 mi
Rank: #15835 (+246)
20M21M
8:25 | 8:25/mi
35K
2:54:50
21.75 mi
Rank: #15611 (+224)
21M35K
5:33 | 7:26/mi
23M
3:04:28
23.00 mi
Rank: #15286 (+325)
35K23M
9:38 | 7:42/mi
24M
3:12:07
24.00 mi
Rank: #15084 (+202)
23M24M
7:39 | 7:39/mi
40K
3:18:44
24.85 mi
Rank: #14892 (+192)
24M40K
6:37 | 7:45/mi
25.2M
3:21:29
25.20 mi
Rank: #14792 (+100)
40K25.2M
2:45 | 7:59/mi
FINISH
3:28:38
26.22 mi
Rank: #14523 (+269)
25.2MFINISH
7:09 | 7:01/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time1:45:18
Pace8:02 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:43:20
Pace7:53 /mi
📊Negative Split: 1.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:4125:598:2225:59
8:22
-
10K
6.21 mi12:13:5351:118:1525:12
8:07
-0:15
15K
9.32 mi12:38:421:16:008:1024:49
8:00
-0:07
20K
12.43 mi13:02:471:40:058:0424:05
7:46
-0:14
HALF
13.11 mi13:08:001:45:188:025:13
7:40
-0:06
25K
15.53 mi13:27:122:04:308:0119:12
7:56
+0:16
30K
18.64 mi13:52:192:29:378:0225:07
8:06
+0:10
20M
20.00 mi14:03:342:40:528:0311:15
8:17
+0:11
21M
21.00 mi14:11:592:49:178:048:25
8:25
+0:08
35K
21.75 mi14:17:322:54:508:035:33
7:26
-0:59
23M
23.00 mi14:27:103:04:288:029:38
7:42
+0:16
24M
24.00 mi14:34:493:12:078:017:39
7:39
-0:03
40K
24.85 mi14:41:263:18:448:006:37
7:45
+0:06
25.2M
25.20 mi14:44:113:21:298:002:45
7:59
+0:14
FINISH
26.22 mi14:51:203:28:387:587:09
7:01
-0:58

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

7:01 /mi

Average Pace

7:58 /mi

Slowest Pace

8:25 /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

35:12

17% of race

Time at Steady Pace

2:07:47

61% of race

Time at Slower Pace

45:39

22% of race

Average Pace: 7:57 /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 mi11:48:4125:598:2225:59
8:22
#19270
10K
6.21 mi12:13:5351:118:1525:12
8:07
#18617
15K
9.32 mi12:38:421:16:008:1024:49
8:00
#18087
20K
12.43 mi13:02:471:40:058:0424:05
7:46
#17218
HALF
13.11 mi13:08:001:45:188:025:13
7:40
#17043
25K
15.53 mi13:27:122:04:308:0119:12
7:56
#16675
30K
18.64 mi13:52:192:29:378:0225:07
8:06
#16179
20M
20.00 mi14:03:342:40:528:0311:15
8:17
#16081
21M
21.00 mi14:11:592:49:178:048:25
8:25
#15835
35K
21.75 mi14:17:322:54:508:035:33
7:26
#15611
23M
23.00 mi14:27:103:04:288:029:38
7:42
#15286
24M
24.00 mi14:34:493:12:078:017:39
7:39
#15084
40K
24.85 mi14:41:263:18:448:006:37
7:45
#14892
25.2M
25.20 mi14:44:113:21:298:002:45
7:59
#14792
FINISH
26.22 mi14:51:203:28:387:587:09
7:01
#14523
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 mi19270119501195016911(Top 58%)10976(Top 67%)10976(Top 192%)
10K6.21 mi3.10 mi18617+65311698+25211698+25218032(Top 62%)11448(Top 70%)11448(Top 200%)
15K9.32 mi3.11 mi18087+53011471+22711471+22716911(Top 58%)10976(Top 67%)10976(Top 192%)
20K12.43 mi3.11 mi17218+86911090+38111090+38114135(Top 49%)9797(Top 60%)9797(Top 171%)
HALF13.11 mi0.68 mi17043+17511012+7811012+7814278(Top 49%)9908(Top 61%)9908(Top 173%)
25K15.53 mi2.42 mi16675+36810852+16010852+16014722(Top 51%)9957(Top 61%)9957(Top 174%)
30K18.64 mi3.11 mi16179+49610592+26010592+26014100(Top 49%)9599(Top 59%)9599(Top 168%)
20M20.00 mi1.36 mi16081+9810545+4710545+4714791(Top 51%)9807(Top 60%)9807(Top 171%)
21M21.00 mi1.00 mi15835+24610427+11810427+11812580(Top 43%)8716(Top 53%)8716(Top 152%)
35K21.75 mi0.75 mi15611+22410322+10510322+10510223(Top 35%)7609(Top 47%)7609(Top 133%)
23M23.00 mi1.25 mi15286+32510168+15410168+15410280(Top 35%)7518(Top 46%)7518(Top 131%)
24M24.00 mi1.00 mi15084+20210062+10610062+10611194(Top 39%)7887(Top 48%)7887(Top 138%)
40K24.85 mi0.85 mi14892+1929959+1039959+10310589(Top 36%)7515(Top 46%)7515(Top 131%)
25.2M25.20 mi0.35 mi14792+1009913+469913+468198(Top 28%)6233(Top 38%)6233(Top 109%)
FINISH26.22 mi1.02 mi14523+2699790+1239790+1237715(Top 27%)5914(Top 36%)5914(Top 103%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21
+97ft-345ft

Overall

16911

Males

10976

M18-39

10976

5K→10K

3.1 - 6.2 mi

Top 62%
×5
+79ft-138ft

Overall

18032

Males

11448

M18-39

11448

10K→15K

6.2 - 9.3 mi

Top 58%
×3
+67ft-78ft

Overall

16911

Males

10976

M18-39

10976

15K→20K

9.3 - 12.4 mi

Top 49%
×5
+106ft-86ft

Overall

14135

Males

9797

M18-39

9797

20K→HALF

12.4 - 13.1 mi

Top 49%
×2
+19ft-37ft

Overall

14278

Males

9908

M18-39

9908

HALF→25K

13.1 - 15.5 mi

Top 51%
×4
+66ft-88ft

Overall

14722

Males

9957

M18-39

9957

25K→30K

15.5 - 18.6 mi

Top 49%
×9
+181ft-148ft

Overall

14100

Males

9599

M18-39

9599

30K→20M

18.6 - 20.0 mi

Top 51%
×5
+64ft-50ft

Overall

14791

Males

9807

M18-39

9807

20M→21M

20.0 - 21.0 mi

Top 43%
×8
+106ft-24ft

Overall

12580

Males

8716

M18-39

8716

21M→35K

21.0 - 21.8 mi

Top 35%
×7
+17ft-86ft

Overall

10223

Males

7609

M18-39

7609

35K→23M

21.8 - 23.0 mi

Top 35%
×5
+23ft-63ft

Overall

10280

Males

7518

M18-39

7518

23M→24M

23.0 - 24.0 mi

Top 39%
×6
+12ft-82ft

Overall

11194

Males

7887

M18-39

7887

24M→40K

24.0 - 24.9 mi

Top 36%
×1
+6ft-20ft

Overall

10589

Males

7515

M18-39

7515

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1
+13ft-16ft

Overall

8198

Males

6233

M18-39

6233

25.2M→FINISH

25.2 - 26.2 mi

Top 27%
×2
+22ft-21ft

Overall

7715

Males

5914

M18-39

5914

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
4946*
Passed By
199
Net Change
+4747
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19270
5K10K727*74+653#19270#18617
10K15K563*33+530#18617#18087
15K20K871*2+869#18087#17218
20KHALF1772+175#17218#17043
HALF25K380*12+368#17043#16675
25K30K515*19+496#16675#16179
30K20M13234+98#16179#16081
20M21M253*7+246#16081#15835
21M35K226*2+224#15835#15611
35K23M326*1+325#15611#15286
23M24M207*5+202#15286#15084
24M40K1964+192#15084#14892
40K25.2M1044+100#14892#14792
25.2MFINISH269*0+269#14792#14523
TOTALS4946*199+4747

* 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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Qualifying & Age Grade

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OTQ

Olympic Trials Qualifying analysis available

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