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BOSTON MARATHON 2025

Henrik Samdal

Bib: 1366•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 13%
Division (M18-39)
#0 / 5642
Top 31%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:51
Rank: #3031
Start → 5K
6:23/mi
19:51 split
10K· 6.21 mi
39:40
Rank: #2929 (+102)
5K → 10K
6:23/mi
19:49 split
15K· 9.32 mi
59:23
Rank: #2815 (+114)
10K → 15K
6:21/mi
19:43 split
20K· 12.43 mi
1:19:14
Rank: #2710 (+105)
15K → 20K
6:23/mi
19:51 split
Half· 13.11 mi
1:23:31
Rank: #2676 (+34)
20K → Half
6:17/mi
4:17 split
25K· 15.53 mi
1:38:56
Rank: #2564 (+112)
Half → 25K
6:22/mi
15:25 split
30K· 18.64 mi
1:59:32
Rank: #2511 (+53)
25K → 30K
6:38/mi
20:36 split
20M
2:08:38
Rank: #2471 (+40)
30K → 20M
6:42/mi
9:06 split
21M
2:15:42
Rank: #2449 (+22)
20M → 21M
7:04/mi
7:04 split
35K· 21.75 mi
2:20:28
Rank: #2400 (+49)
21M → 35K
6:22/mi
4:46 split
23M
2:28:47
Rank: #2361 (+39)
35K → 23M
6:39/mi
8:19 split
24M
2:35:18
Rank: #2323 (+38)
23M → 24M
6:31/mi
6:31 split
40K· 24.85 mi
2:40:55
Rank: #2284 (+39)
24M → 40K
6:34/mi
5:37 split
25.2M
2:43:25
Rank: #2273 (+11)
40K → 25.2M
7:15/mi
2:30 split
Finish· 26.22 mi
2:49:42
Rank: #2215 (+58)
25.2M → Finish
6:10/mi
6:17 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:31
Pace6:22 /mi
2nd Half
Distance13.11 mi
Time1:26:11
Pace6:34 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:2319:516:2319:51
6:23
-
10K
6.21 mi10:43:1239:406:2319:49
6:23
0:00
15K
9.32 mi11:02:5559:236:2219:43
6:21
-0:02
20K
12.43 mi11:22:461:19:146:2319:51
6:23
+0:02
Half
13.11 mi11:27:031:23:316:224:17
6:17
-0:06
25K
15.53 mi11:42:281:38:566:2215:25
6:22
+0:05
30K
18.64 mi12:03:041:59:326:2520:36
6:38
+0:16
20M
20.00 mi12:12:102:08:386:269:06
6:42
+0:04
21M
21.00 mi12:19:142:15:426:287:04
7:04
+0:22
35K
21.75 mi12:24:002:20:286:284:46
6:22
-0:42
23M
23.00 mi12:32:192:28:476:288:19
6:39
+0:17
24M
24.00 mi12:38:502:35:186:286:31
6:31
-0:08
40K
24.85 mi12:44:272:40:556:285:37
6:34
+0:03
25.2M
25.20 mi12:46:572:43:256:292:30
7:15
+0:41
Finish
26.22 mi12:53:142:49:426:296:17
6:10
-1:05

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

6:10 /mi

Average Pace

6:29 /mi

Slowest Pace

7:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:40:08

94% of race

Time at Steady Pace

9:34

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:28 /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 mi10:23:2319:516:2319:51
6:23
#3031
10K
6.21 mi10:43:1239:406:2319:49
6:23
#2929
15K
9.32 mi11:02:5559:236:2219:43
6:21
#2815
20K
12.43 mi11:22:461:19:146:2319:51
6:23
#2710
Half
13.11 mi11:27:031:23:316:224:17
6:17
#2676
25K
15.53 mi11:42:281:38:566:2215:25
6:22
#2564
30K
18.64 mi12:03:041:59:326:2520:36
6:38
#2511
20M
20.00 mi12:12:102:08:386:269:06
6:42
#2471
21M
21.00 mi12:19:142:15:426:287:04
7:04
#2449
35K
21.75 mi12:24:002:20:286:284:46
6:22
#2400
23M
23.00 mi12:32:192:28:476:288:19
6:39
#2361
24M
24.00 mi12:38:502:35:186:286:31
6:31
#2323
40K
24.85 mi12:44:272:40:556:285:37
6:34
#2284
25.2M
25.20 mi12:46:572:43:256:292:30
7:15
#2273
Finish
26.22 mi12:53:142:49:426:296:17
6:10
#2215
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3031287828782606(Top 9%)2486(Top 15%)2486(Top 44%)
10K6.21 mi3.10 mi2929+1022791+872791+872888(Top 10%)2749(Top 17%)2749(Top 49%)
15K9.32 mi3.11 mi2815+1142684+1072684+1072606(Top 9%)2486(Top 15%)2486(Top 44%)
20K12.43 mi3.11 mi2710+1052583+1012583+1012459(Top 9%)2344(Top 15%)2344(Top 42%)
Half13.11 mi0.68 mi2676+342552+312552+312365(Top 8%)2262(Top 14%)2262(Top 40%)
25K15.53 mi2.42 mi2564+1122448+1042448+1042144(Top 8%)2040(Top 13%)2040(Top 36%)
30K18.64 mi3.11 mi2511+532397+512397+512536(Top 9%)2398(Top 15%)2398(Top 43%)
20M20.00 mi1.36 mi2471+402357+402357+402426(Top 9%)2287(Top 14%)2287(Top 41%)
21M21.00 mi1.00 mi2449+222336+212336+212514(Top 9%)2340(Top 15%)2340(Top 41%)
35K21.75 mi0.75 mi2400+492289+472289+471890(Top 7%)1774(Top 11%)1774(Top 31%)
23M23.00 mi1.25 mi2361+392250+392250+391995(Top 7%)1865(Top 12%)1865(Top 33%)
24M24.00 mi1.00 mi2323+382211+392211+392099(Top 7%)1946(Top 12%)1946(Top 34%)
40K24.85 mi0.85 mi2284+392171+402171+401850(Top 7%)1704(Top 11%)1704(Top 30%)
25.2M25.20 mi0.35 mi2273+112160+112160+112301(Top 8%)2054(Top 13%)2054(Top 36%)
Finish26.22 mi1.02 mi2215+582100+602100+601412(Top 5%)1315(Top 8%)1315(Top 23%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21story building
+97ft-345ft

Overall

2606

Males

2486

M18-39

2486

5K→10K

3.1 - 6.2 mi

Top 10%
×5story building
+79ft-138ft

Overall

2888

Males

2749

M18-39

2749

10K→15K

6.2 - 9.3 mi

Top 9%
×3story building
+67ft-78ft

Overall

2606

Males

2486

M18-39

2486

15K→20K

9.3 - 12.4 mi

Top 9%
×5story building
+106ft-86ft

Overall

2459

Males

2344

M18-39

2344

20K→Half

12.4 - 13.1 mi

Top 8%
×2story building
+19ft-37ft

Overall

2365

Males

2262

M18-39

2262

Half→25K

13.1 - 15.5 mi

Top 8%
×4story building
+66ft-88ft

Overall

2144

Males

2040

M18-39

2040

25K→30K

15.5 - 18.6 mi

Top 9%
×9story building
+181ft-148ft

Overall

2536

Males

2398

M18-39

2398

30K→20M

18.6 - 20.0 mi

Top 9%
×5story building
+64ft-50ft

Overall

2426

Males

2287

M18-39

2287

20M→21M

20.0 - 21.0 mi

Top 9%
×8story building
+106ft-24ft

Overall

2514

Males

2340

M18-39

2340

21M→35K

21.0 - 21.8 mi

Top 7%
×7story building
+17ft-86ft

Overall

1890

Males

1774

M18-39

1774

35K→23M

21.8 - 23.0 mi

Top 7%
×5story building
+23ft-63ft

Overall

1995

Males

1865

M18-39

1865

23M→24M

23.0 - 24.0 mi

Top 7%
×6story building
+12ft-82ft

Overall

2099

Males

1946

M18-39

1946

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1850

Males

1704

M18-39

1704

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2301

Males

2054

M18-39

2054

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2story building
+22ft-21ft

Overall

1412

Males

1315

M18-39

1315

Passing Analysis

Category:
Athletes Passed
1174
Passed By
358
Net Change
+816
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3031
5K → 10K19088+102#3031#2929
10K → 15K14531+114#2929#2815
15K → 20K13631+105#2815#2710
20K → Half384+34#2710#2676
Half → 25K12311+112#2676#2564
25K → 30K11764+53#2564#2511
30K → 20M5919+40#2511#2471
20M → 21M5230+22#2471#2449
21M → 35K589+49#2449#2400
35K → 23M6526+39#2400#2361
23M → 24M4810+38#2361#2323
24M → 40K5718+39#2323#2284
40K → 25.2M187+11#2284#2273
25.2M → Finish6810+58#2273#2215
TOTALS1174358+816
📊

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