Boston Marathon logo
BOSTON MARATHON 2024

Fumiya Kai

Bib: 6654•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Gender (Male)
#0 / 14578
Division (M18-39)
#0 / 4849
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:16/mi
22:35
↑ 97↓ 3451.5%
10K· 6.21 mi
7:27/mi
45:43
↑ 79↓ 1380.4%
15K· 9.32 mi
8:01/mi
1:10:37
↑ 67↓ 78
20K· 12.43 mi
8:41/mi
1:37:37
↑ 106↓ 860.1%
Half· 13.11 mi
8:34/mi
1:43:28
↑ 19↓ 370.5%
25K· 15.53 mi
9:10/mi
2:05:42
↑ 66↓ 880.2%
30K· 18.64 mi
9:45/mi
2:36:01
↑ 181↓ 1480.2%
20M
12:06/mi
2:52:27
↑ 64↓ 500.2%
21M
10:34/mi
3:03:01
↑ 106↓ 241.6%
35K· 21.75 mi
10:16/mi
3:10:42
↑ 17↓ 861.7%
23M
11:19/mi
3:24:52
↑ 23↓ 630.6%
24M
11:20/mi
3:36:12
↓ 821.3%
40K· 24.85 mi
11:32/mi
3:46:04
↓ 200.3%
25.2M
12:31/mi
3:50:23
↑ 13↓ 160.2%
Finish· 26.22 mi
10:11/mi
4:00:46
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:28
Pace7:54 /mi
2nd Half
Distance13.11 mi
Time2:17:18
Pace10:28 /mi
📊Positive Split: 32.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:3622:357:1622:35
7:16
-
10K
6.21 mi10:50:4445:437:2123:08
7:27
+0:11
15K
9.32 mi11:15:381:10:377:3524:54
8:01
+0:34
20K
12.43 mi11:42:381:37:377:5127:00
8:41
+0:40
Half
13.11 mi11:48:291:43:287:545:51
8:34
-0:07
25K
15.53 mi12:10:432:05:428:0622:14
9:10
+0:36
30K
18.64 mi12:41:022:36:018:2230:19
9:45
+0:35
20M
20.00 mi12:57:282:52:278:3716:26
12:06
+2:21
21M
21.00 mi13:08:023:03:018:4310:34
10:34
-1:32
35K
21.75 mi13:15:433:10:428:467:41
10:16
-0:18
23M
23.00 mi13:29:533:24:528:5414:10
11:19
+1:03
24M
24.00 mi13:41:133:36:129:0111:20
11:20
+0:01
40K
24.85 mi13:51:053:46:049:069:52
11:32
+0:12
25.2M
25.20 mi13:55:243:50:239:094:19
12:31
+0:59
Finish
26.22 mi14:05:474:00:469:1110:23
10:11
-2:20

Checkpoints & Pacing

📈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

7:16 /mi

Average Pace

9:11 /mi

Slowest Pace

12:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:42

52% of race

Time at Steady Pace

58:57

24% of race

Time at Slower Pace

56:07

23% of race

Average Pace: 9:11 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:27:3622:357:1622:35
7:16
#8944
10K
6.21 mi10:50:4445:437:2123:08
7:27
#9322
15K
9.32 mi11:15:381:10:377:3524:54
8:01
#10783
20K
12.43 mi11:42:381:37:377:5127:00
8:41
#12306
Half
13.11 mi11:48:291:43:287:545:51
8:34
#12534
25K
15.53 mi12:10:432:05:428:0622:14
9:10
#13361
30K
18.64 mi12:41:022:36:018:2230:19
9:45
#14025
20M
20.00 mi12:57:282:52:278:3716:26
12:06
#15107
21M
21.00 mi13:08:023:03:018:4310:34
10:34
#15088
35K
21.75 mi13:15:433:10:428:467:41
10:16
#15238
23M
23.00 mi13:29:533:24:528:5414:10
11:19
#15661
24M
24.00 mi13:41:133:36:129:0111:20
11:20
#15972
40K
24.85 mi13:51:053:46:049:069:52
11:32
#16154
25.2M
25.20 mi13:55:243:50:239:094:19
12:31
#16219
Finish
26.22 mi14:05:474:00:469:1110:23
10:11
#16351
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi89447373737313539(Top 53%)9410(Top 65%)9410(Top 194%)
10K6.21 mi3.10 mi9322-3787558-1857558-1859797(Top 38%)7773(Top 53%)7773(Top 160%)
15K9.32 mi3.11 mi10783-14618251-6938251-69313539(Top 53%)9410(Top 65%)9410(Top 194%)
20K12.43 mi3.11 mi12306-15238890-6398890-63915792(Top 62%)10292(Top 71%)10292(Top 212%)
Half13.11 mi0.68 mi12534-2288992-1028992-10216111(Top 63%)10388(Top 71%)10388(Top 214%)
25K15.53 mi2.42 mi13361-8279314-3229314-32216290(Top 64%)10373(Top 71%)10373(Top 214%)
30K18.64 mi3.11 mi14025-6649497-1839497-18316466(Top 64%)10210(Top 70%)10210(Top 211%)
20M20.00 mi1.36 mi15107-10829883-3869883-38621519(Top 84%)12448(Top 85%)12448(Top 257%)
21M21.00 mi1.00 mi15088+199830+539830+5315053(Top 59%)9171(Top 63%)9171(Top 189%)
35K21.75 mi0.75 mi15238-1509872-429872-4217927(Top 70%)10584(Top 73%)10584(Top 218%)
23M23.00 mi1.25 mi15661-4239995-1239995-12319202(Top 75%)11172(Top 77%)11172(Top 230%)
24M24.00 mi1.00 mi15972-31110108-11310108-11320052(Top 78%)11539(Top 79%)11539(Top 238%)
40K24.85 mi0.85 mi16154-18210168-6010168-6019406(Top 76%)11150(Top 76%)11150(Top 230%)
25.2M25.20 mi0.35 mi16219-6510177-910177-918533(Top 73%)10706(Top 73%)10706(Top 221%)
Finish26.22 mi1.02 mi16351-13210200-2310200-2319031(Top 74%)11003(Top 75%)11003(Top 227%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

13539

Males

9410

M18-39

9410

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

9797

Males

7773

M18-39

7773

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

13539

Males

9410

M18-39

9410

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

15792

Males

10292

M18-39

10292

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

16111

Males

10388

M18-39

10388

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

16290

Males

10373

M18-39

10373

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

16466

Males

10210

M18-39

10210

30K→20M

18.6 - 20.0 mi

Top 84%
×5story building
+64ft-50ft

Overall

21519

Males

12448

M18-39

12448

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

15053

Males

9171

M18-39

9171

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

17927

Males

10584

M18-39

10584

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

19202

Males

11172

M18-39

11172

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

20052

Males

11539

M18-39

11539

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

19406

Males

11150

M18-39

11150

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

18533

Males

10706

M18-39

10706

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

19031

Males

11003

M18-39

11003

Passing Analysis

Category:
Athletes Passed
727
Passed By
8132
Net Change
-7407
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8944
5K → 10K124502-378#8944#9322
10K → 15K201479-1461#9322#10783
15K → 20K251548-1523#10783#12306
20K → Half13241-228#12306#12534
Half → 25K72899-827#12534#13361
25K → 30K122786-664#13361#14025
30K → 20M101092-1082#14025#15107
20M → 21M134115+19#15107#15088
21M → 35K34184-150#15088#15238
35K → 23M45468-423#15238#15661
23M → 24M20331-311#15661#15972
24M → 40K40222-182#15972#16154
40K → 25.2M2590-65#16154#16219
25.2M → Finish43175-132#16219#16351
TOTALS7278132-7407
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing