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BOSTON MARATHON 2025

Akira Kashikura

Bib: 19709 M JP

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
10:23/mi
32:16
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
11:35/mi
1:08:14
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
12:34/mi
1:47:17
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
13:31/mi
2:29:16
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
13:41/mi
2:38:36
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
14:20/mi
3:13:21
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
13:32/mi
3:55:23
↑ 181↓ 1480.2%
138 ft elev
20M
13:51/mi
4:14:12
↑ 64↓ 500.2%
148 ft elev
21M
14:41/mi
4:28:53
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
12:39/mi
4:38:21
↑ 17↓ 861.7%
156 ft elev
23M
13:38/mi
4:55:25
↑ 23↓ 630.6%
116 ft elev
24M
13:49/mi
5:09:14
↓ 821.3%
34 ft elev
40K· 24.85 mi
13:55/mi
5:21:08
↓ 200.3%
20 ft elev
25.2M
16:03/mi
5:26:40
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
12:46/mi
5:39:41
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
2:38:3612:06 /mi⚡ faster
2nd Half
3:01:0513:49 /mi+14.2%
Positive split — 14.2% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:5932:1610:2332:16
10:23
-
10K
6.21 mi12:30:571:08:1410:5935:58
11:35
+1:12
15K
9.32 mi13:10:001:47:1711:3139:03
12:34
+0:59
20K
12.43 mi13:51:592:29:1612:0141:59
13:31
+0:57
Half
13.11 mi14:01:192:38:3612:069:20
13:41
+0:10
25K
15.53 mi14:36:043:13:2112:2734:45
14:20
+0:39
30K
18.64 mi15:18:063:55:2312:3842:02
13:32
-0:48
20M
20.00 mi15:36:554:14:1212:4318:49
13:51
+0:19
21M
21.00 mi15:51:364:28:5312:4814:41
14:41
+0:50
35K
21.75 mi16:01:044:38:2112:489:28
12:39
-2:02
23M
23.00 mi16:18:084:55:2512:5117:04
13:38
+0:59
24M
24.00 mi16:31:575:09:1412:5313:49
13:49
+0:11
40K
24.85 mi16:43:515:21:0812:5511:54
13:55
+0:06
25.2M
25.20 mi16:49:235:26:4012:585:32
16:03
+2:08
Finish
26.22 mi17:02:245:39:4112:5813:01
12:46
-3:17

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

10:23 /mi

Average Pace

12:58 /mi

Slowest Pace

16:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:46

38% of race

Time at Steady Pace

2:34:57

46% of race

Time at Slower Pace

54:58

16% of race

Average Pace: 12:57 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:54:5932:1610:2332:16
10:23
#26502
10K
6.21 mi12:30:571:08:1410:5935:58
11:35
#27288
15K
9.32 mi13:10:001:47:1711:3139:03
12:34
#27643
20K
12.43 mi13:51:592:29:1612:0141:59
13:31
#27828
Half
13.11 mi14:01:192:38:3612:069:20
13:41
#27877
25K
15.53 mi14:36:043:13:2112:2734:45
14:20
#27924
30K
18.64 mi15:18:063:55:2312:3842:02
13:32
#27826
20M
20.00 mi15:36:554:14:1212:4318:49
13:51
#27788
21M
21.00 mi15:51:364:28:5312:4814:41
14:41
#27751
35K
21.75 mi16:01:044:38:2112:489:28
12:39
#27726
23M
23.00 mi16:18:084:55:2512:5117:04
13:38
#27711
24M
24.00 mi16:31:575:09:1412:5313:49
13:49
#27715
40K
24.85 mi16:43:515:21:0812:5511:54
13:55
#27714
25.2M
25.20 mi16:49:235:26:4012:585:32
16:03
#27722
Finish
26.22 mi17:02:245:39:4112:5813:01
12:46
#27723
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi265021539715397279711594515945
10K6.21 mi3.10 mi27288-78615693-29615693-296276671583515835
15K9.32 mi3.11 mi27643-35515826-13315826-133279711594515945
20K12.43 mi3.11 mi27828-18515890-6415890-64280821596115961
Half13.11 mi0.68 mi27877-4915911-2115911-21282151600716007
25K15.53 mi2.42 mi27924-4715920-915920-9280401593315933
30K18.64 mi3.11 mi27826+9815873+4715873+47271631550815508
20M20.00 mi1.36 mi27788+3815850+2315850+23271771546015460
21M21.00 mi1.00 mi27751+3715827+2315827+23268861531515315
35K21.75 mi0.75 mi27726+2515815+1215815+12266371516215162
23M23.00 mi1.25 mi27711+1515801+1415801+14270011532715327
24M24.00 mi1.00 mi27715-415797+415797+4275411557515575
40K24.85 mi0.85 mi27714+115789+815789+8271151534415344
25.2M25.20 mi0.35 mi27722-815791-215791-2277411567415674
Finish26.22 mi1.02 mi27723-115787+415787+4274791555015550

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21story building
+97ft-345ft

Overall

27971

Males

15945

M55-59

15945

5K→10K

3.1 - 6.2 mi

Top 97%
×5story building
+79ft-138ft

Overall

27667

Males

15835

M55-59

15835

10K→15K

6.2 - 9.3 mi

Top 98%
×3story building
+67ft-78ft

Overall

27971

Males

15945

M55-59

15945

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

28082

Males

15961

M55-59

15961

20K→Half

12.4 - 13.1 mi

Top 99%
×2story building
+19ft-37ft

Overall

28215

Males

16007

M55-59

16007

Half→25K

13.1 - 15.5 mi

Top 99%
×4story building
+66ft-88ft

Overall

28040

Males

15933

M55-59

15933

25K→30K

15.5 - 18.6 mi

Top 96%
×9story building
+181ft-148ft

Overall

27163

Males

15508

M55-59

15508

30K→20M

18.6 - 20.0 mi

Top 96%
×5story building
+64ft-50ft

Overall

27177

Males

15460

M55-59

15460

20M→21M

20.0 - 21.0 mi

Top 95%
×8story building
+106ft-24ft

Overall

26886

Males

15315

M55-59

15315

21M→35K

21.0 - 21.8 mi

Top 94%
×7story building
+17ft-86ft

Overall

26637

Males

15162

M55-59

15162

35K→23M

21.8 - 23.0 mi

Top 95%
×5story building
+23ft-63ft

Overall

27001

Males

15327

M55-59

15327

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

27541

Males

15575

M55-59

15575

24M→40K

24.0 - 24.9 mi

Top 95%
×1story
+6ft-20ft

Overall

27115

Males

15344

M55-59

15344

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

27741

Males

15674

M55-59

15674

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2story building
+22ft-21ft

Overall

27479

Males

15550

M55-59

15550

Passing Analysis

Category:
Athletes Passed
393
Passed By
1614
Net Change
-1221
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26502
5K → 10K17803-786#26502#27288
10K → 15K21376-355#27288#27643
15K → 20K12197-185#27643#27828
20K → Half453-49#27828#27877
Half → 25K2976-47#27877#27924
25K → 30K10911+98#27924#27826
30K → 20M468+38#27826#27788
20M → 21M458+37#27788#27751
21M → 35K272+25#27751#27726
35K → 23M3520+15#27726#27711
23M → 24M1620-4#27711#27715
24M → 40K1413+1#27715#27714
40K → 25.2M210-8#27714#27722
25.2M → Finish1617-1#27722#27723
TOTALS3931614-1221

Passing Charts

Category:
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Passing Circle

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Position Flow

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Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing