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BOSTON MARATHON 2025

Koichi Washizawa

Bib: 12527•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Top 24%
Race Day Weather
50°/40°F
broken 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
7:28/mi
23:13
↑ 97↓ 3451.5%
10K· 6.21 mi
7:32/mi
46:36
↑ 79↓ 1380.4%
15K· 9.32 mi
7:34/mi
1:10:07
↑ 67↓ 78
20K· 12.43 mi
7:40/mi
1:33:57
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:39:09
↑ 19↓ 370.5%
25K· 15.53 mi
7:53/mi
1:58:17
↑ 66↓ 880.2%
30K· 18.64 mi
9:00/mi
2:26:16
↑ 181↓ 1480.2%
20M
8:37/mi
2:37:59
↑ 64↓ 500.2%
21M
9:56/mi
2:47:55
↑ 106↓ 241.6%
35K· 21.75 mi
8:56/mi
2:54:36
↑ 17↓ 861.7%
23M
9:12/mi
3:06:07
↑ 23↓ 630.6%
24M
9:08/mi
3:15:15
↓ 821.3%
40K· 24.85 mi
9:30/mi
3:23:22
↓ 200.3%
25.2M
10:35/mi
3:27:01
↑ 13↓ 160.2%
Finish· 26.22 mi
8:43/mi
3:35:54
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:09
Pace7:34 /mi
2nd Half
Distance13.11 mi
Time1:56:45
Pace8:54 /mi
📊Positive Split: 17.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3423:137:2823:13
7:28
-
10K
6.21 mi11:13:5746:367:3023:23
7:32
+0:04
15K
9.32 mi11:37:281:10:077:3123:31
7:34
+0:02
20K
12.43 mi12:01:181:33:577:3423:50
7:40
+0:06
Half
13.11 mi12:06:301:39:097:345:12
7:37
-0:03
25K
15.53 mi12:25:381:58:177:3719:08
7:53
+0:16
30K
18.64 mi12:53:372:26:167:5127:59
9:00
+1:07
20M
20.00 mi13:05:202:37:597:5411:43
8:37
-0:23
21M
21.00 mi13:15:162:47:558:009:56
9:56
+1:19
35K
21.75 mi13:21:572:54:368:026:41
8:56
-1:00
23M
23.00 mi13:33:283:06:078:0611:31
9:12
+0:16
24M
24.00 mi13:42:363:15:158:089:08
9:08
-0:04
40K
24.85 mi13:50:433:23:228:118:07
9:30
+0:22
25.2M
25.20 mi13:54:223:27:018:133:39
10:35
+1:05
Finish
26.22 mi14:03:153:35:548:148:53
8:43
-1:52

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

7:28 /mi

Average Pace

8:14 /mi

Slowest Pace

10:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:58:17

55% of race

Time at Steady Pace

1:04:24

30% of race

Time at Slower Pace

33:13

15% of race

Average Pace: 8:14 /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 mi10:50:3423:137:2823:13
7:28
#12008
10K
6.21 mi11:13:5746:367:3023:23
7:32
#12126
15K
9.32 mi11:37:281:10:077:3123:31
7:34
#12185
20K
12.43 mi12:01:181:33:577:3423:50
7:40
#12161
Half
13.11 mi12:06:301:39:097:345:12
7:37
#12185
25K
15.53 mi12:25:381:58:177:3719:08
7:53
#12314
30K
18.64 mi12:53:372:26:167:5127:59
9:00
#13455
20M
20.00 mi13:05:202:37:597:5411:43
8:37
#13513
21M
21.00 mi13:15:162:47:558:009:56
9:56
#13821
35K
21.75 mi13:21:572:54:368:026:41
8:56
#13999
23M
23.00 mi13:33:283:06:078:0611:31
9:12
#14279
24M
24.00 mi13:42:363:15:158:089:08
9:08
#14443
40K
24.85 mi13:50:433:23:228:118:07
9:30
#14608
25.2M
25.20 mi13:54:223:27:018:133:39
10:35
#14701
Finish
26.22 mi14:03:153:35:548:148:53
8:43
#14801
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi120089175917512325(Top 43%)9220(Top 57%)9220(Top 732%)
10K6.21 mi3.10 mi12126-1189217-429217-4212331(Top 43%)9305(Top 58%)9305(Top 739%)
15K9.32 mi3.11 mi12185-599212+59212+512325(Top 43%)9220(Top 57%)9220(Top 732%)
20K12.43 mi3.11 mi12161+249170+429170+4212148(Top 43%)9042(Top 56%)9042(Top 718%)
Half13.11 mi0.68 mi12185-249172-29172-212743(Top 45%)9366(Top 58%)9366(Top 744%)
25K15.53 mi2.42 mi12314-1299199-279199-2713033(Top 46%)9307(Top 58%)9307(Top 739%)
30K18.64 mi3.11 mi13455-11419627-4289627-42817721(Top 62%)11245(Top 70%)11245(Top 893%)
20M20.00 mi1.36 mi13513-589618+99618+914543(Top 51%)9706(Top 60%)9706(Top 771%)
21M21.00 mi1.00 mi13821-3089710-929710-9218024(Top 63%)11166(Top 69%)11166(Top 887%)
35K21.75 mi0.75 mi13999-1789772-629772-6217892(Top 63%)10995(Top 68%)10995(Top 873%)
23M23.00 mi1.25 mi14279-2809864-929864-9217298(Top 61%)10644(Top 66%)10644(Top 845%)
24M24.00 mi1.00 mi14443-1649921-579921-5718012(Top 63%)10923(Top 68%)10923(Top 868%)
40K24.85 mi0.85 mi14608-1659962-419962-4118660(Top 66%)11145(Top 69%)11145(Top 885%)
25.2M25.20 mi0.35 mi14701-939989-279989-2719257(Top 68%)11416(Top 71%)11416(Top 907%)
Finish26.22 mi1.02 mi14801-10010003-1410003-1417545(Top 62%)10648(Top 66%)10648(Top 846%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

12325

Males

9220

M60-64

9220

5K→10K

3.1 - 6.2 mi

Top 43%
×5story building
+79ft-138ft

Overall

12331

Males

9305

M60-64

9305

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

12325

Males

9220

M60-64

9220

15K→20K

9.3 - 12.4 mi

Top 43%
×5story building
+106ft-86ft

Overall

12148

Males

9042

M60-64

9042

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

12743

Males

9366

M60-64

9366

Half→25K

13.1 - 15.5 mi

Top 46%
×4story building
+66ft-88ft

Overall

13033

Males

9307

M60-64

9307

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

17721

Males

11245

M60-64

11245

30K→20M

18.6 - 20.0 mi

Top 51%
×5story building
+64ft-50ft

Overall

14543

Males

9706

M60-64

9706

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

18024

Males

11166

M60-64

11166

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

17892

Males

10995

M60-64

10995

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

17298

Males

10644

M60-64

10644

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

18012

Males

10923

M60-64

10923

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18660

Males

11145

M60-64

11145

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

19257

Males

11416

M60-64

11416

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2story building
+22ft-21ft

Overall

17545

Males

10648

M60-64

10648

Passing Analysis

Category:
Athletes Passed
1108
Passed By
3901
Net Change
-2793
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12008
5K → 10K200318-118#12008#12126
10K → 15K170229-59#12126#12185
15K → 20K199175+24#12185#12161
20K → Half2448-24#12161#12185
Half → 25K114243-129#12185#12314
25K → 30K521193-1141#12314#13455
30K → 20M103161-58#13455#13513
20M → 21M39347-308#13513#13821
21M → 35K33211-178#13821#13999
35K → 23M46326-280#13999#14279
23M → 24M31195-164#14279#14443
24M → 40K37202-165#14443#14608
40K → 25.2M14107-93#14608#14701
25.2M → Finish46146-100#14701#14801
TOTALS11083901-2793
📊

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