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BOSTON MARATHON 2025

Kent Sasse

NV

Bib: 8439 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:39/mi
26:51
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:41/mi
53:51
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:29/mi
1:20:11
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:22/mi
1:46:12
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:07/mi
1:51:44
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:34/mi
2:12:31
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:51/mi
2:40:02
↑ 181↓ 1480.2%
138 ft elev
20M
9:04/mi
2:52:21
↑ 64↓ 500.2%
148 ft elev
21M
9:50/mi
3:02:11
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:49/mi
3:08:47
↑ 17↓ 861.7%
156 ft elev
23M
9:17/mi
3:20:25
↑ 23↓ 630.6%
116 ft elev
24M
9:13/mi
3:29:38
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:21/mi
3:37:38
↓ 200.3%
20 ft elev
25.2M
10:18/mi
3:41:11
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:42/mi
3:51:04
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:44
Pace8:31 /mi
2nd Half
Distance13.11 mi
Time1:59:20
Pace9:06 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:34:3226:518:3926:51
8:39
-
10K
6.21 mi11:01:3253:518:4027:00
8:41
+0:02
15K
9.32 mi11:27:521:20:118:3626:20
8:29
-0:12
20K
12.43 mi11:53:531:46:128:3326:01
8:22
-0:07
Half
13.11 mi11:59:251:51:448:315:32
8:07
-0:15
25K
15.53 mi12:20:122:12:318:3220:47
8:34
+0:27
30K
18.64 mi12:47:432:40:028:3527:31
8:51
+0:17
20M
20.00 mi13:00:022:52:218:3712:19
9:04
+0:13
21M
21.00 mi13:09:523:02:118:419:50
9:50
+0:46
35K
21.75 mi13:16:283:08:478:416:36
8:49
-1:01
23M
23.00 mi13:28:063:20:258:4311:38
9:17
+0:28
24M
24.00 mi13:37:193:29:388:449:13
9:13
-0:04
40K
24.85 mi13:45:193:37:388:458:00
9:21
+0:08
25.2M
25.20 mi13:48:523:41:118:473:33
10:18
+0:57
Finish
26.22 mi13:58:453:51:048:499:53
9:42
-0:36

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

8:07 /mi

Average Pace

8:49 /mi

Slowest Pace

10:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

57:53

25% of race

Time at Steady Pace

2:01:04

52% of race

Time at Slower Pace

52:07

23% of race

Average Pace: 8:49 /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 mi10:34:3226:518:3926:51
8:39
#20704
10K
6.21 mi11:01:3253:518:4027:00
8:41
#20727
15K
9.32 mi11:27:521:20:118:3626:20
8:29
#20222
20K
12.43 mi11:53:531:46:128:3326:01
8:22
#19563
Half
13.11 mi11:59:251:51:448:315:32
8:07
#19408
25K
15.53 mi12:20:122:12:318:3220:47
8:34
#19095
30K
18.64 mi12:47:432:40:028:3527:31
8:51
#18669
20M
20.00 mi13:00:022:52:218:3712:19
9:04
#18533
21M
21.00 mi13:09:523:02:118:419:50
9:50
#18453
35K
21.75 mi13:16:283:08:478:416:36
8:49
#18413
23M
23.00 mi13:28:063:20:258:4311:38
9:17
#18361
24M
24.00 mi13:37:193:29:388:449:13
9:13
#18357
40K
24.85 mi13:45:193:37:388:458:00
9:21
#18355
25.2M
25.20 mi13:48:523:41:118:473:33
10:18
#18359
Finish
26.22 mi13:58:453:51:048:499:53
9:42
#18557
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi20704127271272719176(Top 68%)12129(Top 75%)12129(Top 736%)
10K6.21 mi3.10 mi20727-2312768-4112768-4120811(Top 73%)12826(Top 80%)12826(Top 778%)
15K9.32 mi3.11 mi20222+50512565+20312565+20319176(Top 68%)12129(Top 75%)12129(Top 736%)
20K12.43 mi3.11 mi19563+65912284+28112284+28117385(Top 61%)11344(Top 70%)11344(Top 688%)
Half13.11 mi0.68 mi19408+15512213+7112213+7116660(Top 59%)11055(Top 69%)11055(Top 671%)
25K15.53 mi2.42 mi19095+31312072+14112072+14117619(Top 62%)11371(Top 71%)11371(Top 690%)
30K18.64 mi3.11 mi18669+42611859+21311859+21316930(Top 60%)10892(Top 68%)10892(Top 661%)
20M20.00 mi1.36 mi18533+13611774+8511774+8517128(Top 60%)10881(Top 68%)10881(Top 660%)
21M21.00 mi1.00 mi18453+8011704+7011704+7017618(Top 62%)10974(Top 68%)10974(Top 666%)
35K21.75 mi0.75 mi18413+4011675+2911675+2917351(Top 61%)10755(Top 67%)10755(Top 653%)
23M23.00 mi1.25 mi18361+5211628+4711628+4717728(Top 62%)10832(Top 67%)10832(Top 657%)
24M24.00 mi1.00 mi18357+411593+3511593+3518413(Top 65%)11114(Top 69%)11114(Top 674%)
40K24.85 mi0.85 mi18355+211560+3311560+3318091(Top 64%)10880(Top 68%)10880(Top 660%)
25.2M25.20 mi0.35 mi18359-411552+811552+818240(Top 64%)10933(Top 68%)10933(Top 663%)
Finish26.22 mi1.02 mi18557-19811627-7511627-7521896(Top 77%)12729(Top 79%)12729(Top 772%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

19176

Males

12129

M55-59

12129

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

20811

Males

12826

M55-59

12826

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

19176

Males

12129

M55-59

12129

15K→20K

9.3 - 12.4 mi

Top 61%
×5story building
+106ft-86ft

Overall

17385

Males

11344

M55-59

11344

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

16660

Males

11055

M55-59

11055

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

17619

Males

11371

M55-59

11371

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

16930

Males

10892

M55-59

10892

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

17128

Males

10881

M55-59

10881

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

17618

Males

10974

M55-59

10974

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

17351

Males

10755

M55-59

10755

35K→23M

21.8 - 23.0 mi

Top 62%
×5story building
+23ft-63ft

Overall

17728

Males

10832

M55-59

10832

23M→24M

23.0 - 24.0 mi

Top 65%
×6story building
+12ft-82ft

Overall

18413

Males

11114

M55-59

11114

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

18091

Males

10880

M55-59

10880

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

18240

Males

10933

M55-59

10933

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

21896

Males

12729

M55-59

12729

Passing Analysis

Category:
Athletes Passed
3157
Passed By
1010
Net Change
+2147
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20704
5K → 10K272295-23#20704#20727
10K → 15K53429+505#20727#20222
15K → 20K6667+659#20222#19563
20K → Half1561+155#19563#19408
Half → 25K34330+313#19408#19095
25K → 30K47347+426#19095#18669
30K → 20M17539+136#18669#18533
20M → 21M14363+80#18533#18453
21M → 35K7232+40#18453#18413
35K → 23M12977+52#18413#18361
23M → 24M8278+4#18361#18357
24M → 40K7270+2#18357#18355
40K → 25.2M2226-4#18355#18359
25.2M → Finish18216-198#18359#18557
TOTALS31571010+2147
📊

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