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BOSTON MARATHON 2025

Seiji Saeki

Bib: 13499•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 37%
Gender (Male)
#0 / 16105
Top 49%
Masters (Masters Men)
#0 / 10463
Top 39%
Division (M60-64)
#0 / 1259
Top 9%
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
7:12/mi
22:23
↑ 97↓ 3451.5%
10K· 6.21 mi
7:16/mi
44:59
↑ 79↓ 1380.4%
15K· 9.32 mi
7:18/mi
1:07:40
↑ 67↓ 78
20K· 12.43 mi
7:24/mi
1:30:38
↑ 106↓ 860.1%
Half· 13.11 mi
7:24/mi
1:35:41
↑ 19↓ 370.5%
25K· 15.53 mi
7:34/mi
1:54:01
↑ 66↓ 880.2%
30K· 18.64 mi
8:01/mi
2:18:55
↑ 181↓ 1480.2%
20M
8:13/mi
2:30:05
↑ 64↓ 500.2%
21M
8:50/mi
2:38:55
↑ 106↓ 241.6%
35K· 21.75 mi
7:59/mi
2:44:53
↑ 17↓ 861.7%
23M
8:07/mi
2:55:03
↑ 23↓ 630.6%
24M
7:54/mi
3:02:57
↓ 821.3%
40K· 24.85 mi
8:04/mi
3:09:51
↓ 200.3%
25.2M
8:48/mi
3:12:53
↑ 13↓ 160.2%
Finish· 26.22 mi
7:48/mi
3:20:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:41
Pace7:18 /mi
2nd Half
Distance13.11 mi
Time1:45:09
Pace8:01 /mi
📊Positive Split: 9.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0622:237:1222:23
7:12
-
10K
6.21 mi11:13:4244:597:1422:36
7:16
+0:04
15K
9.32 mi11:36:231:07:407:1622:41
7:18
+0:02
20K
12.43 mi11:59:211:30:387:1822:58
7:24
+0:06
Half
13.11 mi12:04:241:35:417:185:03
7:24
0:00
25K
15.53 mi12:22:441:54:017:2018:20
7:34
+0:10
30K
18.64 mi12:47:382:18:557:2724:54
8:01
+0:27
20M
20.00 mi12:58:482:30:057:3011:10
8:13
+0:12
21M
21.00 mi13:07:382:38:557:348:50
8:50
+0:37
35K
21.75 mi13:13:362:44:537:355:58
7:59
-0:51
23M
23.00 mi13:23:462:55:037:3710:10
8:07
+0:08
24M
24.00 mi13:31:403:02:577:377:54
7:54
-0:13
40K
24.85 mi13:38:343:09:517:386:54
8:04
+0:10
25.2M
25.20 mi13:41:363:12:537:393:02
8:48
+0:44
Finish
26.22 mi13:49:333:20:507:407:57
7:48
-1:00

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

7:12 /mi

Average Pace

7:40 /mi

Slowest Pace

8:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:01

57% of race

Time at Steady Pace

1:03:47

32% of race

Time at Slower Pace

23:02

11% of race

Average Pace: 7:40 /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 mi10:51:0622:237:1222:23
7:12
#9494
10K
6.21 mi11:13:4244:597:1422:36
7:16
#9794
15K
9.32 mi11:36:231:07:407:1622:41
7:18
#9847
20K
12.43 mi11:59:211:30:387:1822:58
7:24
#9808
Half
13.11 mi12:04:241:35:417:185:03
7:24
#9864
25K
15.53 mi12:22:441:54:017:2018:20
7:34
#9898
30K
18.64 mi12:47:382:18:557:2724:54
8:01
#10169
20M
20.00 mi12:58:482:30:057:3011:10
8:13
#10281
21M
21.00 mi13:07:382:38:557:348:50
8:50
#10408
35K
21.75 mi13:13:362:44:537:355:58
7:59
#10457
23M
23.00 mi13:23:462:55:037:3710:10
8:07
#10432
24M
24.00 mi13:31:403:02:577:377:54
7:54
#10420
40K
24.85 mi13:38:343:09:517:386:54
8:04
#10389
25.2M
25.20 mi13:41:363:12:537:393:02
8:48
#10378
Finish
26.22 mi13:49:333:20:507:407:57
7:48
#10391
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi9494788778879993(Top 35%)8078(Top 50%)8078(Top 642%)
10K6.21 mi3.10 mi9794-3008062-1758062-17510132(Top 36%)8221(Top 51%)8221(Top 653%)
15K9.32 mi3.11 mi9847-538050+128050+129993(Top 35%)8078(Top 50%)8078(Top 642%)
20K12.43 mi3.11 mi9808+398002+488002+489836(Top 35%)7920(Top 49%)7920(Top 629%)
Half13.11 mi0.68 mi9864-568032-308032-3010826(Top 38%)8451(Top 52%)8451(Top 671%)
25K15.53 mi2.42 mi9898-348014+188014+1810434(Top 37%)8108(Top 50%)8108(Top 644%)
30K18.64 mi3.11 mi10169-2718096-828096-8211469(Top 40%)8419(Top 52%)8419(Top 669%)
20M20.00 mi1.36 mi10281-1128119-238119-2311878(Top 42%)8461(Top 53%)8461(Top 672%)
21M21.00 mi1.00 mi10408-1278138-198138-1912467(Top 44%)8585(Top 53%)8585(Top 682%)
35K21.75 mi0.75 mi10457-498142-48142-412069(Top 42%)8349(Top 52%)8349(Top 663%)
23M23.00 mi1.25 mi10432+258087+558087+5510856(Top 38%)7674(Top 48%)7674(Top 610%)
24M24.00 mi1.00 mi10420+128050+378050+3710522(Top 37%)7435(Top 46%)7435(Top 591%)
40K24.85 mi0.85 mi10389+318000+508000+5010650(Top 37%)7378(Top 46%)7378(Top 586%)
25.2M25.20 mi0.35 mi10378+117971+297971+2910551(Top 37%)7243(Top 45%)7243(Top 575%)
Finish26.22 mi1.02 mi10391-137952+197952+1911422(Top 40%)7717(Top 48%)7717(Top 613%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

9993

Males

8078

M60-64

8078

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

10132

Males

8221

M60-64

8221

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

9993

Males

8078

M60-64

8078

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

9836

Males

7920

M60-64

7920

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10826

Males

8451

M60-64

8451

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

10434

Males

8108

M60-64

8108

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

11469

Males

8419

M60-64

8419

30K→20M

18.6 - 20.0 mi

Top 42%
×5story building
+64ft-50ft

Overall

11878

Males

8461

M60-64

8461

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

12467

Males

8585

M60-64

8585

21M→35K

21.0 - 21.8 mi

Top 42%
×7story building
+17ft-86ft

Overall

12069

Males

8349

M60-64

8349

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10856

Males

7674

M60-64

7674

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

10522

Males

7435

M60-64

7435

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

10650

Males

7378

M60-64

7378

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

10551

Males

7243

M60-64

7243

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

11422

Males

7717

M60-64

7717

Passing Analysis

Category:
Athletes Passed
1400
Passed By
2293
Net Change
-897
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9494
5K → 10K127426-300#9494#9794
10K → 15K157209-53#9794#9847
15K → 20K198159+39#9847#9808
20K → Half1773-56#9808#9864
Half → 25K143177-34#9864#9898
25K → 30K155424-271#9898#10169
30K → 20M90202-112#10169#10281
20M → 21M76203-127#10281#10408
21M → 35K3786-49#10408#10457
35K → 23M11691+25#10457#10432
23M → 24M8472+12#10432#10420
24M → 40K8958+31#10420#10389
40K → 25.2M3928+11#10389#10378
25.2M → Finish7285-13#10378#10391
TOTALS14002293-897
📊

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