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BOSTON MARATHON 2025

Akira Kogawa

Bib: 20442•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 44%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 47%
Division (M60-64)
#0 / 1259
Top 14%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:39
Rank: #16023
Start → 5K
7:56/mi
24:39 split
10K· 6.21 mi
49:02
Rank: #15584 (+439)
5K → 10K
7:51/mi
24:23 split
15K· 9.32 mi
1:13:32
Rank: #15399 (+185)
10K → 15K
7:53/mi
24:30 split
20K· 12.43 mi
1:38:03
Rank: #14993 (+406)
15K → 20K
7:53/mi
24:31 split
Half· 13.11 mi
1:43:18
Rank: #14912 (+81)
20K → Half
7:42/mi
5:15 split
25K· 15.53 mi
2:02:26
Rank: #14560 (+352)
Half → 25K
7:53/mi
19:08 split
30K· 18.64 mi
2:27:51
Rank: #14128 (+432)
25K → 30K
8:11/mi
25:25 split
20M
2:38:58
Rank: #13902 (+226)
30K → 20M
8:11/mi
11:07 split
21M
2:47:38
Rank: #13717 (+185)
20M → 21M
8:40/mi
8:40 split
35K· 21.75 mi
2:53:23
Rank: #13568 (+149)
21M → 35K
7:41/mi
5:45 split
23M
3:03:31
Rank: #13358 (+210)
35K → 23M
8:06/mi
10:08 split
24M
3:11:08
Rank: #13135 (+223)
23M → 24M
7:37/mi
7:37 split
40K· 24.85 mi
3:17:47
Rank: #12947 (+188)
24M → 40K
7:47/mi
6:39 split
25.2M
3:20:39
Rank: #12855 (+92)
40K → 25.2M
8:19/mi
2:52 split
Finish· 26.22 mi
3:27:53
Rank: #12545 (+310)
25.2M → Finish
7:06/mi
7:14 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:18
Pace7:53 /mi
2nd Half
Distance13.11 mi
Time1:44:35
Pace7:59 /mi
📊Positive Split: 1.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:3124:397:5624:39
7:56
-
10K
6.21 mi11:42:5449:027:5324:23
7:51
-0:05
15K
9.32 mi12:07:241:13:327:5324:30
7:53
+0:02
20K
12.43 mi12:31:551:38:037:5324:31
7:53
0:00
Half
13.11 mi12:37:101:43:187:535:15
7:42
-0:11
25K
15.53 mi12:56:182:02:267:5319:08
7:53
+0:11
30K
18.64 mi13:21:432:27:517:5625:25
8:11
+0:18
20M
20.00 mi13:32:502:38:587:5711:07
8:11
0:00
21M
21.00 mi13:41:302:47:387:598:40
8:40
+0:29
35K
21.75 mi13:47:152:53:237:585:45
7:41
-0:59
23M
23.00 mi13:57:233:03:317:5910:08
8:06
+0:25
24M
24.00 mi14:05:003:11:087:587:37
7:37
-0:29
40K
24.85 mi14:11:393:17:477:576:39
7:47
+0:10
25.2M
25.20 mi14:14:313:20:397:582:52
8:19
+0:32
Finish
26.22 mi14:21:453:27:537:567:14
7:06
-1:13

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

7:06 /mi

Average Pace

7:56 /mi

Slowest Pace

8:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

25:51

12% of race

Time at Steady Pace

2:03:50

60% of race

Time at Slower Pace

58:12

28% of race

Average Pace: 7:56 /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 mi11:18:3124:397:5624:39
7:56
#16023
10K
6.21 mi11:42:5449:027:5324:23
7:51
#15584
15K
9.32 mi12:07:241:13:327:5324:30
7:53
#15399
20K
12.43 mi12:31:551:38:037:5324:31
7:53
#14993
Half
13.11 mi12:37:101:43:187:535:15
7:42
#14912
25K
15.53 mi12:56:182:02:267:5319:08
7:53
#14560
30K
18.64 mi13:21:432:27:517:5625:25
8:11
#14128
20M
20.00 mi13:32:502:38:587:5711:07
8:11
#13902
21M
21.00 mi13:41:302:47:387:598:40
8:40
#13717
35K
21.75 mi13:47:152:53:237:585:45
7:41
#13568
23M
23.00 mi13:57:233:03:317:5910:08
8:06
#13358
24M
24.00 mi14:05:003:11:087:587:37
7:37
#13135
40K
24.85 mi14:11:393:17:477:576:39
7:47
#12947
25.2M
25.20 mi14:14:313:20:397:582:52
8:19
#12855
Finish
26.22 mi14:21:453:27:537:567:14
7:06
#12545
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi16023108101081015120(Top 53%)10421(Top 65%)10421(Top 828%)
10K6.21 mi3.10 mi15584+43910648+16210648+16215226(Top 54%)10504(Top 65%)10504(Top 834%)
15K9.32 mi3.11 mi15399+18510568+8010568+8015120(Top 53%)10421(Top 65%)10421(Top 828%)
20K12.43 mi3.11 mi14993+40610366+20210366+20213990(Top 49%)9857(Top 61%)9857(Top 783%)
Half13.11 mi0.68 mi14912+8110324+4210324+4213295(Top 47%)9595(Top 60%)9595(Top 762%)
25K15.53 mi2.42 mi14560+35210146+17810146+17813023(Top 46%)9297(Top 58%)9297(Top 738%)
30K18.64 mi3.11 mi14128+4329908+2389908+23812672(Top 45%)8986(Top 56%)8986(Top 714%)
20M20.00 mi1.36 mi13902+2269772+1369772+13611673(Top 41%)8363(Top 52%)8363(Top 664%)
21M21.00 mi1.00 mi13717+1859664+1089664+10811464(Top 40%)8108(Top 50%)8108(Top 644%)
35K21.75 mi0.75 mi13568+1499577+879577+879969(Top 35%)7369(Top 46%)7369(Top 585%)
23M23.00 mi1.25 mi13358+2109449+1289449+12810699(Top 38%)7594(Top 47%)7594(Top 603%)
24M24.00 mi1.00 mi13135+2239315+1349315+1348535(Top 30%)6411(Top 40%)6411(Top 509%)
40K24.85 mi0.85 mi12947+1889210+1059210+1058612(Top 30%)6319(Top 39%)6319(Top 502%)
25.2M25.20 mi0.35 mi12855+929156+549156+547719(Top 27%)5778(Top 36%)5778(Top 459%)
Finish26.22 mi1.02 mi12545+3108988+1688988+1686374(Top 22%)4974(Top 31%)4974(Top 395%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

15120

Males

10421

M60-64

10421

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

15226

Males

10504

M60-64

10504

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

15120

Males

10421

M60-64

10421

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13990

Males

9857

M60-64

9857

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

13295

Males

9595

M60-64

9595

Half→25K

13.1 - 15.5 mi

Top 46%
×4story building
+66ft-88ft

Overall

13023

Males

9297

M60-64

9297

25K→30K

15.5 - 18.6 mi

Top 45%
×9story building
+181ft-148ft

Overall

12672

Males

8986

M60-64

8986

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

11673

Males

8363

M60-64

8363

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

11464

Males

8108

M60-64

8108

21M→35K

21.0 - 21.8 mi

Top 35%
×7story building
+17ft-86ft

Overall

9969

Males

7369

M60-64

7369

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10699

Males

7594

M60-64

7594

23M→24M

23.0 - 24.0 mi

Top 30%
×6story building
+12ft-82ft

Overall

8535

Males

6411

M60-64

6411

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8612

Males

6319

M60-64

6319

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7719

Males

5778

M60-64

5778

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2story building
+22ft-21ft

Overall

6374

Males

4974

M60-64

4974

Passing Analysis

Category:
Athletes Passed
3926
Passed By
448
Net Change
+3478
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16023
5K → 10K588149+439#16023#15584
10K → 15K292107+185#15584#15399
15K → 20K43832+406#15399#14993
20K → Half909+81#14993#14912
Half → 25K37119+352#14912#14560
25K → 30K48957+432#14560#14128
30K → 20M24317+226#14128#13902
20M → 21M21227+185#13902#13717
21M → 35K1512+149#13717#13568
35K → 23M22616+210#13568#13358
23M → 24M2263+223#13358#13135
24M → 40K1957+188#13135#12947
40K → 25.2M920+92#12947#12855
25.2M → Finish3133+310#12855#12545
TOTALS3926448+3478
📊

Passing Visuals

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