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BOSTON MARATHON 2025

Yoshiaki Sasaki

Bib: 24790•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M65-69)
#0 / 639
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
9:10/mi
28:29
↑ 97↓ 3451.5%
10K· 6.21 mi
9:18/mi
57:23
↑ 79↓ 1380.4%
15K· 9.32 mi
9:33/mi
1:27:02
↑ 67↓ 78
20K· 12.43 mi
10:12/mi
1:58:44
↑ 106↓ 860.1%
Half· 13.11 mi
9:54/mi
2:05:29
↑ 19↓ 370.5%
25K· 15.53 mi
10:04/mi
2:29:53
↑ 66↓ 880.2%
30K· 18.64 mi
11:24/mi
3:05:19
↑ 181↓ 1480.2%
20M
12:23/mi
3:22:09
↑ 64↓ 500.2%
21M
14:16/mi
3:36:25
↑ 106↓ 241.6%
35K· 21.75 mi
10:54/mi
3:44:34
↑ 17↓ 861.7%
23M
11:27/mi
3:58:54
↑ 23↓ 630.6%
24M
12:08/mi
4:11:02
↓ 821.3%
40K· 24.85 mi
12:38/mi
4:21:50
↓ 200.3%
25.2M
13:12/mi
4:26:23
↑ 13↓ 160.2%
Finish· 26.22 mi
11:52/mi
4:38:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:05:29
Pace9:34 /mi
2nd Half
Distance13.11 mi
Time2:33:00
Pace11:40 /mi
📊Positive Split: 21.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:4228:299:1028:29
9:10
-
10K
6.21 mi11:58:3657:239:1428:54
9:18
+0:08
15K
9.32 mi12:28:151:27:029:2029:39
9:33
+0:15
20K
12.43 mi12:59:571:58:449:3331:42
10:12
+0:39
Half
13.11 mi13:06:422:05:299:346:45
9:54
-0:18
25K
15.53 mi13:31:062:29:539:3924:24
10:04
+0:10
30K
18.64 mi14:06:323:05:199:5635:26
11:24
+1:20
20M
20.00 mi14:23:223:22:0910:0616:50
12:23
+0:59
21M
21.00 mi14:37:383:36:2510:1814:16
14:16
+1:53
35K
21.75 mi14:45:473:44:3410:208:09
10:54
-3:22
23M
23.00 mi15:00:073:58:5410:2314:20
11:27
+0:33
24M
24.00 mi15:12:154:11:0210:2812:08
12:08
+0:41
40K
24.85 mi15:23:034:21:5010:3210:48
12:38
+0:30
25.2M
25.20 mi15:27:364:26:2310:344:33
13:12
+0:34
Finish
26.22 mi15:39:424:38:2910:3812:06
11:52
-1:20

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

9:10 /mi

Average Pace

10:38 /mi

Slowest Pace

14:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:29:53

54% of race

Time at Steady Pace

1:22:09

29% of race

Time at Slower Pace

46:27

17% of race

Average Pace: 10:37 /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 mi11:29:4228:299:1028:29
9:10
#23101
10K
6.21 mi11:58:3657:239:1428:54
9:18
#23331
15K
9.32 mi12:28:151:27:029:2029:39
9:33
#23570
20K
12.43 mi12:59:571:58:449:3331:42
10:12
#23884
Half
13.11 mi13:06:422:05:299:346:45
9:54
#23915
25K
15.53 mi13:31:062:29:539:3924:24
10:04
#23838
30K
18.64 mi14:06:323:05:199:5635:26
11:24
#24081
20M
20.00 mi14:23:223:22:0910:0616:50
12:23
#24275
21M
21.00 mi14:37:383:36:2510:1814:16
14:16
#24474
35K
21.75 mi14:45:473:44:3410:208:09
10:54
#24464
23M
23.00 mi15:00:073:58:5410:2314:20
11:27
#24459
24M
24.00 mi15:12:154:11:0210:2812:08
12:08
#24538
40K
24.85 mi15:23:034:21:5010:3210:48
12:38
#24606
25.2M
25.20 mi15:27:364:26:2310:344:33
13:12
#24637
Finish
26.22 mi15:39:424:38:2910:3812:06
11:52
#24738
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi23101138151381523859(Top 84%)14218(Top 88%)14218(Top 2225%)
10K6.21 mi3.10 mi23331-23013937-12213937-12223539(Top 83%)14049(Top 87%)14049(Top 2199%)
15K9.32 mi3.11 mi23570-23914062-12514062-12523859(Top 84%)14218(Top 88%)14218(Top 2225%)
20K12.43 mi3.11 mi23884-31414195-13314195-13324646(Top 87%)14508(Top 90%)14508(Top 2270%)
Half13.11 mi0.68 mi23915-3114205-1014205-1024595(Top 87%)14483(Top 90%)14483(Top 2267%)
25K15.53 mi2.42 mi23838+7714169+3614169+3623422(Top 82%)13925(Top 86%)13925(Top 2179%)
30K18.64 mi3.11 mi24081-24314248-7914248-7924707(Top 87%)14403(Top 89%)14403(Top 2254%)
20M20.00 mi1.36 mi24275-19414317-6914317-6925779(Top 91%)14821(Top 92%)14821(Top 2319%)
21M21.00 mi1.00 mi24474-19914395-7814395-7826497(Top 93%)15116(Top 94%)15116(Top 2366%)
35K21.75 mi0.75 mi24464+1014376+1914376+1923990(Top 84%)13880(Top 86%)13880(Top 2172%)
23M23.00 mi1.25 mi24459+514357+1914357+1924161(Top 85%)13921(Top 86%)13921(Top 2179%)
24M24.00 mi1.00 mi24538-7914382-2514382-2525830(Top 91%)14713(Top 91%)14713(Top 2303%)
40K24.85 mi0.85 mi24606-6814402-2014402-2025841(Top 91%)14715(Top 91%)14715(Top 2303%)
25.2M25.20 mi0.35 mi24637-3114410-814410-825290(Top 89%)14390(Top 89%)14390(Top 2252%)
Finish26.22 mi1.02 mi24738-10114446-3614446-3626649(Top 94%)15128(Top 94%)15128(Top 2367%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21story building
+97ft-345ft

Overall

23859

Males

14218

M65-69

14218

5K→10K

3.1 - 6.2 mi

Top 83%
×5story building
+79ft-138ft

Overall

23539

Males

14049

M65-69

14049

10K→15K

6.2 - 9.3 mi

Top 84%
×3story building
+67ft-78ft

Overall

23859

Males

14218

M65-69

14218

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

24646

Males

14508

M65-69

14508

20K→Half

12.4 - 13.1 mi

Top 87%
×2story building
+19ft-37ft

Overall

24595

Males

14483

M65-69

14483

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

23422

Males

13925

M65-69

13925

25K→30K

15.5 - 18.6 mi

Top 87%
×9story building
+181ft-148ft

Overall

24707

Males

14403

M65-69

14403

30K→20M

18.6 - 20.0 mi

Top 91%
×5story building
+64ft-50ft

Overall

25779

Males

14821

M65-69

14821

20M→21M

20.0 - 21.0 mi

Top 93%
×8story building
+106ft-24ft

Overall

26497

Males

15116

M65-69

15116

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

23990

Males

13880

M65-69

13880

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

24161

Males

13921

M65-69

13921

23M→24M

23.0 - 24.0 mi

Top 91%
×6story building
+12ft-82ft

Overall

25830

Males

14713

M65-69

14713

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

25841

Males

14715

M65-69

14715

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

25290

Males

14390

M65-69

14390

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2story building
+22ft-21ft

Overall

26649

Males

15128

M65-69

15128

Passing Analysis

Category:
Athletes Passed
737
Passed By
2374
Net Change
-1637
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23101
5K → 10K133363-230#23101#23331
10K → 15K101340-239#23331#23570
15K → 20K57371-314#23570#23884
20K → Half1041-31#23884#23915
Half → 25K15376+77#23915#23838
25K → 30K78321-243#23838#24081
30K → 20M28222-194#24081#24275
20M → 21M19218-199#24275#24474
21M → 35K3424+10#24474#24464
35K → 23M6661+5#24464#24459
23M → 24M25104-79#24459#24538
24M → 40K1381-68#24538#24606
40K → 25.2M839-31#24606#24637
25.2M → Finish12113-101#24637#24738
TOTALS7372374-1637
📊

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