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BOSTON MARATHON 2025

Niles Sturtevant

Bib: 27504•M

NH

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:15
Rank: #21351
Start → 5K
27:15 | 8:46/mi
10K· 6.21 mi
52:21
Rank: #19389 (+1962)
5K → 10K
25:06 | 8:05/mi
15K· 9.32 mi
1:17:45
Rank: #18662 (+727)
10K → 15K
25:24 | 8:11/mi
20K· 12.43 mi
1:43:28
Rank: #18159 (+503)
15K → 20K
25:43 | 8:17/mi
Half· 13.11 mi
1:48:51
Rank: #17999 (+160)
20K → Half
5:23 | 7:53/mi
25K· 15.53 mi
2:09:18
Rank: #17736 (+263)
Half → 25K
20:27 | 8:26/mi
30K· 18.64 mi
2:37:12
Rank: #17685 (+51)
25K → 30K
27:54 | 8:59/mi
20M
2:49:51
Rank: #17729 (-44)
30K → 20M
12:39 | 9:19/mi
21M
3:00:21
Rank: #17943 (-214)
20M → 21M
10:30 | 10:30/mi
35K· 21.75 mi
3:07:21
Rank: #18014 (-71)
21M → 35K
7:00 | 9:21/mi
23M
3:20:08
Rank: #18294 (-280)
35K → 23M
12:47 | 10:13/mi
24M
3:29:33
Rank: #18330 (-36)
23M → 24M
9:25 | 9:25/mi
40K· 24.85 mi
3:37:49
Rank: #18389 (-59)
24M → 40K
8:16 | 9:40/mi
25.2M
3:41:24
Rank: #18398 (-9)
40K → 25.2M
3:35 | 10:23/mi
Finish· 26.22 mi
3:50:16
Rank: #18376 (+22)
25.2M → Finish
8:52 | 8:42/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:51
Pace8:18 /mi
2nd Half
Distance13.11 mi
Time2:01:25
Pace9:16 /mi
📊Positive Split: 11.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:4827:158:4627:15
8:46
-
10K
6.21 mi12:10:5452:218:2525:06
8:05
-0:41
15K
9.32 mi12:36:181:17:458:2125:24
8:11
+0:06
20K
12.43 mi13:02:011:43:288:2025:43
8:17
+0:06
Half
13.11 mi13:07:241:48:518:185:23
7:53
-0:24
25K
15.53 mi13:27:512:09:188:1920:27
8:26
+0:33
30K
18.64 mi13:55:452:37:128:2627:54
8:59
+0:33
20M
20.00 mi14:08:242:49:518:3012:39
9:19
+0:20
21M
21.00 mi14:18:543:00:218:3510:30
10:30
+1:11
35K
21.75 mi14:25:543:07:218:377:00
9:21
-1:09
23M
23.00 mi14:38:413:20:088:4212:47
10:13
+0:52
24M
24.00 mi14:48:063:29:338:449:25
9:25
-0:48
40K
24.85 mi14:56:223:37:498:468:16
9:40
+0:15
25.2M
25.20 mi14:59:573:41:248:473:35
10:23
+0:43
Finish
26.22 mi15:08:493:50:168:478:52
8:42
-1:41

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

7:53 /mi

Average Pace

8:47 /mi

Slowest Pace

10:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:03

44% of race

Time at Steady Pace

1:23:40

36% of race

Time at Slower Pace

44:33

19% of race

Average Pace: 8:47 /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 mi11:45:4827:158:4627:15
8:46
#21351
10K
6.21 mi12:10:5452:218:2525:06
8:05
#19389
15K
9.32 mi12:36:181:17:458:2125:24
8:11
#18662
20K
12.43 mi13:02:011:43:288:2025:43
8:17
#18159
Half
13.11 mi13:07:241:48:518:185:23
7:53
#17999
25K
15.53 mi13:27:512:09:188:1920:27
8:26
#17736
30K
18.64 mi13:55:452:37:128:2627:54
8:59
#17685
20M
20.00 mi14:08:242:49:518:3012:39
9:19
#17729
21M
21.00 mi14:18:543:00:218:3510:30
10:30
#17943
35K
21.75 mi14:25:543:07:218:377:00
9:21
#18014
23M
23.00 mi14:38:413:20:088:4212:47
10:13
#18294
24M
24.00 mi14:48:063:29:338:449:25
9:25
#18330
40K
24.85 mi14:56:223:37:498:468:16
9:40
#18389
25.2M
25.20 mi14:59:573:41:248:473:35
10:23
#18398
Finish
26.22 mi15:08:493:50:168:478:52
8:42
#18376
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21351130201302017229(Top 61%)11315(Top 70%)11315(Top 201%)
10K6.21 mi3.10 mi19389+196212219+80112219+80117050(Top 60%)11267(Top 70%)11267(Top 200%)
15K9.32 mi3.11 mi18662+72711897+32211897+32217229(Top 61%)11315(Top 70%)11315(Top 201%)
20K12.43 mi3.11 mi18159+50311679+21811679+21816799(Top 59%)11088(Top 69%)11088(Top 197%)
Half13.11 mi0.68 mi17999+16011612+6711612+6715001(Top 53%)10363(Top 64%)10363(Top 184%)
25K15.53 mi2.42 mi17736+26311485+12711485+12716776(Top 59%)11004(Top 68%)11004(Top 195%)
30K18.64 mi3.11 mi17685+5111408+7711408+7717581(Top 62%)11184(Top 69%)11184(Top 198%)
20M20.00 mi1.36 mi17729-4411401+711401+718319(Top 64%)11368(Top 71%)11368(Top 201%)
21M21.00 mi1.00 mi17943-21411491-9011491-9020003(Top 70%)12036(Top 75%)12036(Top 213%)
35K21.75 mi0.75 mi18014-7111506-1511506-1519776(Top 70%)11860(Top 74%)11860(Top 210%)
23M23.00 mi1.25 mi18294-28011596-9011596-9021131(Top 74%)12453(Top 77%)12453(Top 221%)
24M24.00 mi1.00 mi18330-3611580+1611580+1619292(Top 68%)11546(Top 72%)11546(Top 205%)
40K24.85 mi0.85 mi18389-5911576+411576+419332(Top 68%)11479(Top 71%)11479(Top 203%)
25.2M25.20 mi0.35 mi18398-911572+411572+418580(Top 65%)11112(Top 69%)11112(Top 197%)
Finish26.22 mi1.02 mi18376+2211537+3511537+3517463(Top 61%)10625(Top 66%)10625(Top 188%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

17229

Males

11315

M18-39

11315

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

17050

Males

11267

M18-39

11267

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

17229

Males

11315

M18-39

11315

15K→20K

9.3 - 12.4 mi

Top 59%
×5stories
+106ft-86ft

Overall

16799

Males

11088

M18-39

11088

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

15001

Males

10363

M18-39

10363

Half→25K

13.1 - 15.5 mi

Top 59%
×4stories
+66ft-88ft

Overall

16776

Males

11004

M18-39

11004

25K→30K

15.5 - 18.6 mi

Top 62%
×9stories
+181ft-148ft

Overall

17581

Males

11184

M18-39

11184

30K→20M

18.6 - 20.0 mi

Top 64%
×5stories
+64ft-50ft

Overall

18319

Males

11368

M18-39

11368

20M→21M

20.0 - 21.0 mi

Top 70%
×8stories
+106ft-24ft

Overall

20003

Males

12036

M18-39

12036

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

19776

Males

11860

M18-39

11860

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

21131

Males

12453

M18-39

12453

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

19292

Males

11546

M18-39

11546

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19332

Males

11479

M18-39

11479

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18580

Males

11112

M18-39

11112

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

17463

Males

10625

M18-39

10625

Passing Analysis

Category:
Athletes Passed
4384
Passed By
1409
Net Change
+2975
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21351
5K → 10K197210+1962#21351#19389
10K → 15K74114+727#19389#18662
15K → 20K51815+503#18662#18159
20K → Half1611+160#18159#17999
Half → 25K30643+263#17999#17736
25K → 30K241190+51#17736#17685
30K → 20M106150-44#17685#17729
20M → 21M44258-214#17729#17943
21M → 35K40111-71#17943#18014
35K → 23M44324-280#18014#18294
23M → 24M68104-36#18294#18330
24M → 40K53112-59#18330#18389
40K → 25.2M2130-9#18389#18398
25.2M → Finish6947+22#18398#18376
TOTALS43841409+2975
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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