Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing

Jun Kawashima

Bib: 8138MAge: N/A

CA

Boston Marathon logo
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
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  • Finish time optimization
  • Qualification readiness
  • Segment-by-segment breakdown
  • Personalized race insights
  • Downloadable athlete report
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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
22:56
3.11 mi
Rank: #11772
Start5K
22:56 | 7:23/mi
10K
46:08
6.21 mi
Rank: #12186 (-414)
5K10K
23:12 | 7:29/mi
15K
1:10:04
9.32 mi
Rank: #12953 (-767)
10K15K
23:56 | 7:43/mi
20K
1:34:21
12.43 mi
Rank: #13367 (-414)
15K20K
24:17 | 7:49/mi
HALF
1:39:38
13.11 mi
Rank: #13450 (-83)
20KHALF
5:17 | 7:46/mi
25K
1:59:27
15.53 mi
Rank: #13971 (-521)
HALF25K
19:49 | 8:11/mi
30K
2:26:54
18.64 mi
Rank: #15021 (-1050)
25K30K
27:27 | 8:51/mi
20M
2:39:47
20.00 mi
Rank: #15650 (-629)
30K20M
12:53 | 9:30/mi
21M
2:51:02
21.00 mi
Rank: #16421 (-771)
20M21M
11:15 | 11:15/mi
35K
2:58:11
21.75 mi
Rank: #16692 (-271)
21M35K
7:09 | 9:34/mi
23M
3:11:34
23.00 mi
Rank: #17395 (-703)
35K23M
13:23 | 10:42/mi
24M
3:20:55
24.00 mi
Rank: #17575 (-180)
23M24M
9:21 | 9:21/mi
40K
3:29:34
24.85 mi
Rank: #17841 (-266)
24M40K
8:39 | 10:08/mi
25.2M
3:33:30
25.20 mi
Rank: #17994 (-153)
40K25.2M
3:56 | 11:25/mi
FINISH
3:43:04
26.22 mi
Rank: #18193 (-199)
25.2MFINISH
9:34 | 9:24/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:39:38
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time2:03:26
Pace9:25 /mi
📊Positive Split: 23.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:4322:567:2322:56
7:23
-
10K
6.21 mi10:51:5546:087:2623:12
7:29
+0:06
15K
9.32 mi11:15:511:10:047:3223:56
7:43
+0:14
20K
12.43 mi11:40:081:34:217:3624:17
7:49
+0:06
HALF
13.11 mi11:45:251:39:387:375:17
7:46
-0:03
25K
15.53 mi12:05:141:59:277:4219:49
8:11
+0:25
30K
18.64 mi12:32:412:26:547:5327:27
8:51
+0:40
20M
20.00 mi12:45:342:39:478:0012:53
9:30
+0:39
21M
21.00 mi12:56:492:51:028:0911:15
11:15
+1:45
35K
21.75 mi13:03:582:58:118:127:09
9:34
-1:41
23M
23.00 mi13:17:213:11:348:2013:23
10:42
+1:08
24M
24.00 mi13:26:423:20:558:239:21
9:21
-1:21
40K
24.85 mi13:35:213:29:348:268:39
10:08
+0:47
25.2M
25.20 mi13:39:173:33:308:293:56
11:25
+1:17
FINISH
26.22 mi13:48:513:43:048:319:34
9:24
-2:01

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

7:23 /mi

Average Pace

8:31 /mi

Slowest Pace

11:25 /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

1:59:27

54% of race

Time at Steady Pace

1:06:24

30% of race

Time at Slower Pace

37:13

17% of race

Average Pace: 8:30 /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 mi10:28:4322:567:2322:56
7:23
#11772
10K
6.21 mi10:51:5546:087:2623:12
7:29
#12186
15K
9.32 mi11:15:511:10:047:3223:56
7:43
#12953
20K
12.43 mi11:40:081:34:217:3624:17
7:49
#13367
HALF
13.11 mi11:45:251:39:387:375:17
7:46
#13450
25K
15.53 mi12:05:141:59:277:4219:49
8:11
#13971
30K
18.64 mi12:32:412:26:547:5327:27
8:51
#15021
20M
20.00 mi12:45:342:39:478:0012:53
9:30
#15650
21M
21.00 mi12:56:492:51:028:0911:15
11:15
#16421
35K
21.75 mi13:03:582:58:118:127:09
9:34
#16692
23M
23.00 mi13:17:213:11:348:2013:23
10:42
#17395
24M
24.00 mi13:26:423:20:558:239:21
9:21
#17575
40K
24.85 mi13:35:213:29:348:268:39
10:08
#17841
25.2M
25.20 mi13:39:173:33:308:293:56
11:25
#17994
FINISH
26.22 mi13:48:513:43:048:319:34
9:24
#18193
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 mi117728943894314569(Top 50%)10024(Top 61%)10024(Top 672%)
10K6.21 mi3.10 mi12186-4149094-1519094-15112636(Top 44%)9261(Top 57%)9261(Top 621%)
15K9.32 mi3.11 mi12953-7679392-2989392-29814569(Top 50%)10024(Top 61%)10024(Top 672%)
20K12.43 mi3.11 mi13367-4149531-1399531-13914655(Top 50%)10007(Top 61%)10007(Top 671%)
HALF13.11 mi0.68 mi13450-839573-429573-4215152(Top 52%)10297(Top 63%)10297(Top 691%)
25K15.53 mi2.42 mi13971-5219780-2079780-20716621(Top 57%)10777(Top 66%)10777(Top 723%)
30K18.64 mi3.11 mi15021-105010155-37510155-37518742(Top 65%)11592(Top 71%)11592(Top 777%)
20M20.00 mi1.36 mi15650-62910379-22410379-22420981(Top 72%)12560(Top 77%)12560(Top 842%)
21M21.00 mi1.00 mi16421-77110673-29410673-29423638(Top 81%)13774(Top 84%)13774(Top 924%)
35K21.75 mi0.75 mi16692-27110786-11310786-11321915(Top 76%)12911(Top 79%)12911(Top 866%)
23M23.00 mi1.25 mi17395-70311056-27011056-27023809(Top 82%)13777(Top 84%)13777(Top 924%)
24M24.00 mi1.00 mi17575-18011110-5411110-5420779(Top 72%)12269(Top 75%)12269(Top 823%)
40K24.85 mi0.85 mi17841-26611201-9111201-9122236(Top 77%)12928(Top 79%)12928(Top 867%)
25.2M25.20 mi0.35 mi17994-15311265-6411265-6423275(Top 80%)13421(Top 82%)13421(Top 900%)
FINISH26.22 mi1.02 mi18193-19911341-7611341-7621958(Top 76%)12828(Top 79%)12828(Top 860%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21
+97ft-345ft

Overall

14569

Males

10024

M55-59

10024

5K→10K

3.1 - 6.2 mi

Top 44%
×5
+79ft-138ft

Overall

12636

Males

9261

M55-59

9261

10K→15K

6.2 - 9.3 mi

Top 50%
×3
+67ft-78ft

Overall

14569

Males

10024

M55-59

10024

15K→20K

9.3 - 12.4 mi

Top 50%
×5
+106ft-86ft

Overall

14655

Males

10007

M55-59

10007

20K→HALF

12.4 - 13.1 mi

Top 52%
×2
+19ft-37ft

Overall

15152

Males

10297

M55-59

10297

HALF→25K

13.1 - 15.5 mi

Top 57%
×4
+66ft-88ft

Overall

16621

Males

10777

M55-59

10777

25K→30K

15.5 - 18.6 mi

Top 65%
×9
+181ft-148ft

Overall

18742

Males

11592

M55-59

11592

30K→20M

18.6 - 20.0 mi

Top 72%
×5
+64ft-50ft

Overall

20981

Males

12560

M55-59

12560

20M→21M

20.0 - 21.0 mi

Top 81%
×8
+106ft-24ft

Overall

23638

Males

13774

M55-59

13774

21M→35K

21.0 - 21.8 mi

Top 76%
×7
+17ft-86ft

Overall

21915

Males

12911

M55-59

12911

35K→23M

21.8 - 23.0 mi

Top 82%
×5
+23ft-63ft

Overall

23809

Males

13777

M55-59

13777

23M→24M

23.0 - 24.0 mi

Top 72%
×6
+12ft-82ft

Overall

20779

Males

12269

M55-59

12269

24M→40K

24.0 - 24.9 mi

Top 77%
×1
+6ft-20ft

Overall

22236

Males

12928

M55-59

12928

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1
+13ft-16ft

Overall

23275

Males

13421

M55-59

13421

25.2M→FINISH

25.2 - 26.2 mi

Top 76%
×2
+22ft-21ft

Overall

21958

Males

12828

M55-59

12828

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
474
Passed By
2648
Net Change
-6421
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11772
5K10K125200-414#11772#12186
10K15K47200-767#12186#12953
15K20K62200-414#12953#13367
20KHALF790-83#13367#13450
HALF25K38200-521#13450#13971
25K30K41200-1050#13971#15021
30K20M21200-629#15021#15650
20M21M14200-771#15650#16421
21M35K21200-271#16421#16692
35K23M13200-703#16692#17395
23M24M34200-180#17395#17575
24M40K21200-266#17575#17841
40K25.2M5158-153#17841#17994
25.2MFINISH25200-199#17994#18193
TOTALS4742648-6421
📊

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

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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