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BOSTON MARATHON 2025

Stephen Lewis

Bib: 10270 M GB

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 27%
Gender (Male)
#0 / 16105
Top 40%
Masters (Masters Men)
#0 / 10463
Top 27%
Division (M45-49)
#0 / 2386
Top 39%
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
7:12/mi
22:23
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:18/mi
45:03
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:19/mi
1:07:47
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:13/mi
1:30:13
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:14/mi
1:35:09
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:16/mi
1:52:45
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:29/mi
2:15:59
↑ 181↓ 1480.2%
138 ft elev
20M
7:30/mi
2:26:11
↑ 64↓ 500.2%
148 ft elev
21M
8:00/mi
2:34:11
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:22/mi
2:39:42
↑ 17↓ 861.7%
156 ft elev
23M
7:30/mi
2:49:06
↑ 23↓ 630.6%
116 ft elev
24M
7:12/mi
2:56:18
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:20/mi
3:02:34
↓ 200.3%
20 ft elev
25.2M
8:10/mi
3:05:23
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:00/mi
3:12:31
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:35:097:15 /mi⚡ faster
2nd Half
1:37:227:26 /mi+2.3%
Positive split — 2.3% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:0322:237:1222:23
7:12
-
10K
6.21 mi11:11:4345:037:1522:40
7:18
+0:06
15K
9.32 mi11:34:271:07:477:1622:44
7:19
+0:01
20K
12.43 mi11:56:531:30:137:1622:26
7:13
-0:06
Half
13.11 mi12:01:491:35:097:154:56
7:14
+0:01
25K
15.53 mi12:19:251:52:457:1517:36
7:16
+0:02
30K
18.64 mi12:42:392:15:597:1823:14
7:29
+0:13
20M
20.00 mi12:52:512:26:117:1910:12
7:30
+0:01
21M
21.00 mi13:00:512:34:117:218:00
8:00
+0:30
35K
21.75 mi13:06:222:39:427:215:31
7:22
-0:38
23M
23.00 mi13:15:462:49:067:219:24
7:30
+0:08
24M
24.00 mi13:22:582:56:187:217:12
7:12
-0:18
40K
24.85 mi13:29:143:02:347:216:16
7:20
+0:08
25.2M
25.20 mi13:32:033:05:237:212:49
8:10
+0:50
Finish
26.22 mi13:39:113:12:317:217:08
7:00
-1:10

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

7:00 /mi

Average Pace

7:21 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:01:42

94% of race

Time at Steady Pace

10:49

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:21 /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 mi10:49:0322:237:1222:23
7:12
#9480
10K
6.21 mi11:11:4345:037:1522:40
7:18
#9875
15K
9.32 mi11:34:271:07:477:1622:44
7:19
#9962
20K
12.43 mi11:56:531:30:137:1622:26
7:13
#9499
Half
13.11 mi12:01:491:35:097:154:56
7:14
#9471
25K
15.53 mi12:19:251:52:457:1517:36
7:16
#9203
30K
18.64 mi12:42:392:15:597:1823:14
7:29
#8789
20M
20.00 mi12:52:512:26:117:1910:12
7:30
#8598
21M
21.00 mi13:00:512:34:117:218:00
8:00
#8475
35K
21.75 mi13:06:222:39:427:215:31
7:22
#8411
23M
23.00 mi13:15:462:49:067:219:24
7:30
#8241
24M
24.00 mi13:22:582:56:187:217:12
7:12
#8067
40K
24.85 mi13:29:143:02:347:216:16
7:20
#7939
25.2M
25.20 mi13:32:033:05:237:212:49
8:10
#7887
Finish
26.22 mi13:39:113:12:317:217:08
7:00
#7746
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi9480787378731010981418141
10K6.21 mi3.10 mi9875-3958104-2318104-2311029182998299
15K9.32 mi3.11 mi9962-878110-68110-61010981418141
20K12.43 mi3.11 mi9499+4637832+2787832+278836270837083
Half13.11 mi0.68 mi9471+287812+207812+20926576087608
25K15.53 mi2.42 mi9203+2687637+1757637+175804767906790
30K18.64 mi3.11 mi8789+4147350+2877350+287758363356335
20M20.00 mi1.36 mi8598+1917199+1517199+151705458725872
21M21.00 mi1.00 mi8475+1237096+1037096+103733458695869
35K21.75 mi0.75 mi8411+647030+667030+66769161086108
23M23.00 mi1.25 mi8241+1706894+1366894+136665653975397
24M24.00 mi1.00 mi8067+1746742+1526742+152583148194819
40K24.85 mi0.85 mi7939+1286633+1096633+109580947424742
25.2M25.20 mi0.35 mi7887+526590+436590+43684252615261
Finish26.22 mi1.02 mi7746+1416473+1176473+117573045674567

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21story building
+97ft-345ft

Overall

10109

Males

8141

M45-49

8141

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

10291

Males

8299

M45-49

8299

10K→15K

6.2 - 9.3 mi

Top 36%
×3story building
+67ft-78ft

Overall

10109

Males

8141

M45-49

8141

15K→20K

9.3 - 12.4 mi

Top 29%
×5story building
+106ft-86ft

Overall

8362

Males

7083

M45-49

7083

20K→Half

12.4 - 13.1 mi

Top 33%
×2story building
+19ft-37ft

Overall

9265

Males

7608

M45-49

7608

Half→25K

13.1 - 15.5 mi

Top 28%
×4story building
+66ft-88ft

Overall

8047

Males

6790

M45-49

6790

25K→30K

15.5 - 18.6 mi

Top 27%
×9story building
+181ft-148ft

Overall

7583

Males

6335

M45-49

6335

30K→20M

18.6 - 20.0 mi

Top 25%
×5story building
+64ft-50ft

Overall

7054

Males

5872

M45-49

5872

20M→21M

20.0 - 21.0 mi

Top 26%
×8story building
+106ft-24ft

Overall

7334

Males

5869

M45-49

5869

21M→35K

21.0 - 21.8 mi

Top 27%
×7story building
+17ft-86ft

Overall

7691

Males

6108

M45-49

6108

35K→23M

21.8 - 23.0 mi

Top 23%
×5story building
+23ft-63ft

Overall

6656

Males

5397

M45-49

5397

23M→24M

23.0 - 24.0 mi

Top 21%
×6story building
+12ft-82ft

Overall

5831

Males

4819

M45-49

4819

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5809

Males

4742

M45-49

4742

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6842

Males

5261

M45-49

5261

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2story building
+22ft-21ft

Overall

5730

Males

4567

M45-49

4567

Passing Analysis

Category:
Athletes Passed
2720
Passed By
984
Net Change
+1734
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9480
5K → 10K106500-395#9480#9875
10K → 15K148234-87#9875#9962
15K → 20K47714+463#9962#9499
20K → Half5123+28#9499#9471
Half → 25K29830+268#9471#9203
25K → 30K45844+414#9203#8789
30K → 20M20817+191#8789#8598
20M → 21M16138+123#8598#8475
21M → 35K8824+64#8475#8411
35K → 23M19525+170#8411#8241
23M → 24M1828+174#8241#8067
24M → 40K13810+128#8067#7939
40K → 25.2M597+52#7939#7887
25.2M → Finish15110+141#7887#7746
TOTALS2720984+1734

Passing Charts

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