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BOSTON MARATHON 2025

Andy Clark

Bib: 12738•M

MD

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
8:28/mi
26:18
↑ 97↓ 3451.5%
10K· 6.21 mi
8:40/mi
53:15
↑ 79↓ 1380.4%
15K· 9.32 mi
8:46/mi
1:20:29
↑ 67↓ 78
20K· 12.43 mi
9:07/mi
1:48:49
↑ 106↓ 860.1%
Half· 13.11 mi
8:54/mi
1:54:53
↑ 19↓ 370.5%
25K· 15.53 mi
9:06/mi
2:16:56
↑ 66↓ 880.2%
30K· 18.64 mi
9:20/mi
2:45:56
↑ 181↓ 1480.2%
20M
9:18/mi
2:58:34
↑ 64↓ 500.2%
21M
9:37/mi
3:08:11
↑ 106↓ 241.6%
35K· 21.75 mi
8:45/mi
3:14:44
↑ 17↓ 861.7%
23M
9:13/mi
3:26:17
↑ 23↓ 630.6%
24M
9:16/mi
3:35:33
↓ 821.3%
40K· 24.85 mi
9:18/mi
3:43:30
↓ 200.3%
25.2M
10:06/mi
3:46:59
↑ 13↓ 160.2%
Finish· 26.22 mi
9:02/mi
3:56:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:53
Pace8:46 /mi
2nd Half
Distance13.11 mi
Time2:01:18
Pace9:15 /mi
📊Positive Split: 5.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:58:0726:188:2826:18
8:28
-
10K
6.21 mi11:25:0453:158:3426:57
8:40
+0:12
15K
9.32 mi11:52:181:20:298:3827:14
8:46
+0:06
20K
12.43 mi12:20:381:48:498:4528:20
9:07
+0:21
Half
13.11 mi12:26:421:54:538:466:04
8:54
-0:13
25K
15.53 mi12:48:452:16:568:4922:03
9:06
+0:12
30K
18.64 mi13:17:452:45:568:5429:00
9:20
+0:14
20M
20.00 mi13:30:232:58:348:5612:38
9:18
-0:02
21M
21.00 mi13:40:003:08:118:589:37
9:37
+0:19
35K
21.75 mi13:46:333:14:448:576:33
8:45
-0:52
23M
23.00 mi13:58:063:26:178:5811:33
9:13
+0:28
24M
24.00 mi14:07:223:35:338:599:16
9:16
+0:03
40K
24.85 mi14:15:193:43:309:007:57
9:18
+0:02
25.2M
25.20 mi14:18:483:46:599:003:29
10:06
+0:48
Finish
26.22 mi14:28:003:56:119:019:12
9:02
-1:04

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

8:28 /mi

Average Pace

9:01 /mi

Slowest Pace

10:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:05

82% of race

Time at Steady Pace

38:37

16% of race

Time at Slower Pace

3:29

1% of race

Average Pace: 9:00 /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 mi10:58:0726:188:2826:18
8:28
#19671
10K
6.21 mi11:25:0453:158:3426:57
8:40
#20238
15K
9.32 mi11:52:181:20:298:3827:14
8:46
#20390
20K
12.43 mi12:20:381:48:498:4528:20
9:07
#20707
Half
13.11 mi12:26:421:54:538:466:04
8:54
#20739
25K
15.53 mi12:48:452:16:568:4922:03
9:06
#20694
30K
18.64 mi13:17:452:45:568:5429:00
9:20
#20376
20M
20.00 mi13:30:232:58:348:5612:38
9:18
#20206
21M
21.00 mi13:40:003:08:118:589:37
9:37
#19999
35K
21.75 mi13:46:333:14:448:576:33
8:45
#19895
23M
23.00 mi13:58:063:26:178:5811:33
9:13
#19746
24M
24.00 mi14:07:223:35:338:599:16
9:16
#19701
40K
24.85 mi14:15:193:43:309:007:57
9:18
#19643
25.2M
25.20 mi14:18:483:46:599:003:29
10:06
#19599
Finish
26.22 mi14:28:003:56:119:019:12
9:02
#19592
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi19671123091230920838(Top 73%)12871(Top 80%)12871(Top 539%)
10K6.21 mi3.10 mi20238-56712565-25612565-25620725(Top 73%)12791(Top 79%)12791(Top 536%)
15K9.32 mi3.11 mi20390-15212637-7212637-7220838(Top 73%)12871(Top 80%)12871(Top 539%)
20K12.43 mi3.11 mi20707-31712775-13812775-13821530(Top 76%)13137(Top 82%)13137(Top 551%)
Half13.11 mi0.68 mi20739-3212789-1412789-1421303(Top 75%)13033(Top 81%)13033(Top 546%)
25K15.53 mi2.42 mi20694+4512765+2412765+2420326(Top 72%)12558(Top 78%)12558(Top 526%)
30K18.64 mi3.11 mi20376+31812574+19112574+19119265(Top 68%)11953(Top 74%)11953(Top 501%)
20M20.00 mi1.36 mi20206+17012478+9612478+9618278(Top 64%)11357(Top 71%)11357(Top 476%)
21M21.00 mi1.00 mi19999+20712376+10212376+10216623(Top 59%)10541(Top 65%)10541(Top 442%)
35K21.75 mi0.75 mi19895+10412315+6112315+6117011(Top 60%)10626(Top 66%)10626(Top 445%)
23M23.00 mi1.25 mi19746+14912211+10412211+10417439(Top 61%)10715(Top 67%)10715(Top 449%)
24M24.00 mi1.00 mi19701+4512165+4612165+4618654(Top 66%)11244(Top 70%)11244(Top 471%)
40K24.85 mi0.85 mi19643+5812125+4012125+4017840(Top 63%)10745(Top 67%)10745(Top 450%)
25.2M25.20 mi0.35 mi19599+4412093+3212093+3217444(Top 61%)10584(Top 66%)10584(Top 444%)
Finish26.22 mi1.02 mi19592+712075+1812075+1819183(Top 68%)11422(Top 71%)11422(Top 479%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

20838

Males

12871

M45-49

12871

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

20725

Males

12791

M45-49

12791

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

20838

Males

12871

M45-49

12871

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

21530

Males

13137

M45-49

13137

20K→Half

12.4 - 13.1 mi

Top 75%
×2story building
+19ft-37ft

Overall

21303

Males

13033

M45-49

13033

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

20326

Males

12558

M45-49

12558

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

19265

Males

11953

M45-49

11953

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

18278

Males

11357

M45-49

11357

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

16623

Males

10541

M45-49

10541

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

17011

Males

10626

M45-49

10626

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

17439

Males

10715

M45-49

10715

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

18654

Males

11244

M45-49

11244

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

17840

Males

10745

M45-49

10745

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17444

Males

10584

M45-49

10584

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2story building
+22ft-21ft

Overall

19183

Males

11422

M45-49

11422

Passing Analysis

Category:
Athletes Passed
1883
Passed By
1804
Net Change
+79
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19671
5K → 10K88655-567#19671#20238
10K → 15K138290-152#20238#20390
15K → 20K100417-317#20390#20707
20K → Half2254-32#20707#20739
Half → 25K172127+45#20739#20694
25K → 30K37759+318#20694#20376
30K → 20M19121+170#20376#20206
20M → 21M22114+207#20206#19999
21M → 35K1106+104#19999#19895
35K → 23M17122+149#19895#19746
23M → 24M8944+45#19746#19701
24M → 40K8729+58#19701#19643
40K → 25.2M5410+44#19643#19599
25.2M → Finish6356+7#19599#19592
TOTALS18831804+79
📊

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