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BOSTON MARATHON 2025

Clinton Saiki

Bib: 10565•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
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
23:11
↑ 97↓ 3451.5%
10K· 6.21 mi
7:42/mi
47:06
↑ 79↓ 1380.4%
15K· 9.32 mi
7:54/mi
1:11:40
↑ 67↓ 78
20K· 12.43 mi
7:50/mi
1:36:00
↑ 106↓ 860.1%
Half· 13.11 mi
7:52/mi
1:41:22
↑ 19↓ 370.5%
25K· 15.53 mi
8:16/mi
2:01:24
↑ 66↓ 880.2%
30K· 18.64 mi
8:43/mi
2:28:30
↑ 181↓ 1480.2%
20M
8:50/mi
2:40:30
↑ 64↓ 500.2%
21M
9:24/mi
2:49:54
↑ 106↓ 241.6%
35K· 21.75 mi
9:04/mi
2:56:41
↑ 17↓ 861.7%
23M
9:05/mi
3:08:04
↑ 23↓ 630.6%
24M
9:03/mi
3:17:07
↓ 821.3%
40K· 24.85 mi
9:17/mi
3:25:03
↓ 200.3%
25.2M
10:47/mi
3:28:46
↑ 13↓ 160.2%
Finish· 26.22 mi
8:10/mi
3:37:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:22
Pace7:44 /mi
2nd Half
Distance13.11 mi
Time1:55:43
Pace8:50 /mi
📊Positive Split: 14.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:1423:117:2823:11
7:28
-
10K
6.21 mi11:13:0947:067:3523:55
7:42
+0:14
15K
9.32 mi11:37:431:11:407:4124:34
7:54
+0:12
20K
12.43 mi12:02:031:36:007:4324:20
7:50
-0:04
Half
13.11 mi12:07:251:41:227:445:22
7:52
+0:02
25K
15.53 mi12:27:272:01:247:4920:02
8:16
+0:24
30K
18.64 mi12:54:332:28:307:5827:06
8:43
+0:27
20M
20.00 mi13:06:332:40:308:0112:00
8:50
+0:07
21M
21.00 mi13:15:572:49:548:059:24
9:24
+0:34
35K
21.75 mi13:22:442:56:418:076:47
9:04
-0:20
23M
23.00 mi13:34:073:08:048:1111:23
9:05
+0:01
24M
24.00 mi13:43:103:17:078:139:03
9:03
-0:02
40K
24.85 mi13:51:063:25:038:157:56
9:17
+0:14
25.2M
25.20 mi13:54:493:28:468:173:43
10:47
+1:30
Finish
26.22 mi14:03:083:37:058:178:19
8:10
-2:37

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

8:17 /mi

Slowest Pace

10:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:43

60% of race

Time at Steady Pace

1:06:19

31% of race

Time at Slower Pace

21:03

10% of race

Average Pace: 8:17 /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 mi10:49:1423:117:2823:11
7:28
#11896
10K
6.21 mi11:13:0947:067:3523:55
7:42
#12838
15K
9.32 mi11:37:431:11:407:4124:34
7:54
#13649
20K
12.43 mi12:02:031:36:007:4324:20
7:50
#13577
Half
13.11 mi12:07:251:41:227:445:22
7:52
#13645
25K
15.53 mi12:27:272:01:247:4920:02
8:16
#14004
30K
18.64 mi12:54:332:28:307:5827:06
8:43
#14419
20M
20.00 mi13:06:332:40:308:0112:00
8:50
#14533
21M
21.00 mi13:15:572:49:548:059:24
9:24
#14604
35K
21.75 mi13:22:442:56:418:076:47
9:04
#14740
23M
23.00 mi13:34:073:08:048:1111:23
9:05
#14845
24M
24.00 mi13:43:103:17:078:139:03
9:03
#14972
40K
24.85 mi13:51:063:25:038:157:56
9:17
#15111
25.2M
25.20 mi13:54:493:28:468:173:43
10:47
#15214
Finish
26.22 mi14:03:083:37:058:178:19
8:10
#15151
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi118969131913115281(Top 54%)10495(Top 65%)10495(Top 440%)
10K6.21 mi3.10 mi12838-9429549-4189549-41813867(Top 49%)9946(Top 62%)9946(Top 417%)
15K9.32 mi3.11 mi13649-8119840-2919840-29115281(Top 54%)10495(Top 65%)10495(Top 440%)
20K12.43 mi3.11 mi13577+729765+759765+7513523(Top 48%)9659(Top 60%)9659(Top 405%)
Half13.11 mi0.68 mi13645-689793-289793-2814771(Top 52%)10246(Top 64%)10246(Top 429%)
25K15.53 mi2.42 mi14004-3599917-1249917-12415671(Top 55%)10514(Top 65%)10514(Top 441%)
30K18.64 mi3.11 mi14419-41510031-11410031-11416118(Top 57%)10546(Top 65%)10546(Top 442%)
20M20.00 mi1.36 mi14533-11410059-2810059-2815818(Top 56%)10290(Top 64%)10290(Top 431%)
21M21.00 mi1.00 mi14604-7110061-210061-215606(Top 55%)10050(Top 62%)10050(Top 421%)
35K21.75 mi0.75 mi14740-13610105-4410105-4418527(Top 65%)11258(Top 70%)11258(Top 472%)
23M23.00 mi1.25 mi14845-10510123-1810123-1816753(Top 59%)10402(Top 65%)10402(Top 436%)
24M24.00 mi1.00 mi14972-12710144-2110144-2117597(Top 62%)10737(Top 67%)10737(Top 450%)
40K24.85 mi0.85 mi15111-13910165-2110165-2117712(Top 62%)10683(Top 66%)10683(Top 448%)
25.2M25.20 mi0.35 mi15214-10310192-2710192-2719915(Top 70%)11737(Top 73%)11737(Top 492%)
Finish26.22 mi1.02 mi15151+6310151+4110151+4113995(Top 49%)9015(Top 56%)9015(Top 378%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

15281

Males

10495

M45-49

10495

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13867

Males

9946

M45-49

9946

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

15281

Males

10495

M45-49

10495

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

13523

Males

9659

M45-49

9659

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

14771

Males

10246

M45-49

10246

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

15671

Males

10514

M45-49

10514

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

16118

Males

10546

M45-49

10546

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

15818

Males

10290

M45-49

10290

20M→21M

20.0 - 21.0 mi

Top 55%
×8story building
+106ft-24ft

Overall

15606

Males

10050

M45-49

10050

21M→35K

21.0 - 21.8 mi

Top 65%
×7story building
+17ft-86ft

Overall

18527

Males

11258

M45-49

11258

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

16753

Males

10402

M45-49

10402

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

17597

Males

10737

M45-49

10737

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

17712

Males

10683

M45-49

10683

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

19915

Males

11737

M45-49

11737

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

13995

Males

9015

M45-49

9015

Passing Analysis

Category:
Athletes Passed
1053
Passed By
4308
Net Change
-3255
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11896
5K → 10K44986-942#11896#12838
10K → 15K45856-811#12838#13649
15K → 20K227155+72#13649#13577
20K → Half1482-68#13577#13645
Half → 25K86445-359#13645#14004
25K → 30K143558-415#14004#14419
30K → 20M99213-114#14419#14533
20M → 21M86157-71#14533#14604
21M → 35K34170-136#14604#14740
35K → 23M83188-105#14740#14845
23M → 24M44171-127#14845#14972
24M → 40K32171-139#14972#15111
40K → 25.2M14117-103#15111#15214
25.2M → Finish10239+63#15214#15151
TOTALS10534308-3255
📊

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