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BOSTON MARATHON 2025

Benjamin Kemp

Bib: 25917•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 34%
Gender (Male)
#0 / 16105
Top 47%
Division (M18-39)
#0 / 5642
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
7:07/mi
22:07
↑ 97↓ 3451.5%
10K· 6.21 mi
7:17/mi
44:44
↑ 79↓ 1380.4%
15K· 9.32 mi
7:12/mi
1:07:07
↑ 67↓ 78
20K· 12.43 mi
7:09/mi
1:29:21
↑ 106↓ 860.1%
Half· 13.11 mi
7:09/mi
1:34:14
↑ 19↓ 370.5%
25K· 15.53 mi
7:27/mi
1:52:18
↑ 66↓ 880.2%
30K· 18.64 mi
7:42/mi
2:16:12
↑ 181↓ 1480.2%
20M
8:03/mi
2:27:09
↑ 64↓ 500.2%
21M
8:21/mi
2:35:30
↑ 106↓ 241.6%
35K· 21.75 mi
8:04/mi
2:41:32
↑ 17↓ 861.7%
23M
8:27/mi
2:52:07
↑ 23↓ 630.6%
24M
8:23/mi
3:00:30
↓ 821.3%
40K· 24.85 mi
8:15/mi
3:07:33
↓ 200.3%
25.2M
8:48/mi
3:10:35
↑ 13↓ 160.2%
Finish· 26.22 mi
7:33/mi
3:18:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:14
Pace7:11 /mi
2nd Half
Distance13.11 mi
Time1:44:03
Pace7:56 /mi
📊Positive Split: 10.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:37:2622:077:0722:07
7:07
-
10K
6.21 mi12:00:0344:447:1222:37
7:17
+0:10
15K
9.32 mi12:22:261:07:077:1222:23
7:12
-0:05
20K
12.43 mi12:44:401:29:217:1122:14
7:09
-0:03
Half
13.11 mi12:49:331:34:147:114:53
7:09
0:00
25K
15.53 mi13:07:371:52:187:1418:04
7:27
+0:18
30K
18.64 mi13:31:312:16:127:1823:54
7:42
+0:15
20M
20.00 mi13:42:282:27:097:2110:57
8:03
+0:21
21M
21.00 mi13:50:492:35:307:248:21
8:21
+0:18
35K
21.75 mi13:56:512:41:327:266:02
8:04
-0:17
23M
23.00 mi14:07:262:52:077:2910:35
8:27
+0:23
24M
24.00 mi14:15:493:00:307:318:23
8:23
-0:04
40K
24.85 mi14:22:523:07:337:337:03
8:15
-0:08
25.2M
25.20 mi14:25:543:10:357:343:02
8:48
+0:33
Finish
26.22 mi14:33:363:18:177:347:42
7:33
-1:15

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

7:07 /mi

Average Pace

7:34 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:14

48% of race

Time at Steady Pace

49:40

25% of race

Time at Slower Pace

54:23

27% of race

Average Pace: 7:34 /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 mi11:37:2622:077:0722:07
7:07
#8802
10K
6.21 mi12:00:0344:447:1222:37
7:17
#9446
15K
9.32 mi12:22:261:07:077:1222:23
7:12
#9344
20K
12.43 mi12:44:401:29:217:1122:14
7:09
#8887
Half
13.11 mi12:49:331:34:147:114:53
7:09
#8869
25K
15.53 mi13:07:371:52:187:1418:04
7:27
#8940
30K
18.64 mi13:31:312:16:127:1823:54
7:42
#8895
20M
20.00 mi13:42:282:27:097:2110:57
8:03
#9025
21M
21.00 mi13:50:492:35:307:248:21
8:21
#9028
35K
21.75 mi13:56:512:41:327:266:02
8:04
#9145
23M
23.00 mi14:07:262:52:077:2910:35
8:27
#9355
24M
24.00 mi14:15:493:00:307:318:23
8:23
#9552
40K
24.85 mi14:22:523:07:337:337:03
8:15
#9619
25.2M
25.20 mi14:25:543:10:357:343:02
8:48
#9625
Finish
26.22 mi14:33:363:18:177:347:42
7:33
#9608
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi8802749174919161(Top 32%)7641(Top 47%)7641(Top 135%)
10K6.21 mi3.10 mi9446-6447872-3817872-38110170(Top 36%)8242(Top 51%)8242(Top 146%)
15K9.32 mi3.11 mi9344+1027782+907782+909161(Top 32%)7641(Top 47%)7641(Top 135%)
20K12.43 mi3.11 mi8887+4577498+2847498+2847865(Top 28%)6788(Top 42%)6788(Top 120%)
Half13.11 mi0.68 mi8869+187478+207478+208723(Top 31%)7335(Top 46%)7335(Top 130%)
25K15.53 mi2.42 mi8940-717497-197497-199545(Top 34%)7621(Top 47%)7621(Top 135%)
30K18.64 mi3.11 mi8895+457405+927405+929137(Top 32%)7214(Top 45%)7214(Top 128%)
20M20.00 mi1.36 mi9025-1307452-477452-4710806(Top 38%)7940(Top 49%)7940(Top 141%)
21M21.00 mi1.00 mi9028-37419+337419+339508(Top 33%)7106(Top 44%)7106(Top 126%)
35K21.75 mi0.75 mi9145-1177461-427461-4212637(Top 44%)8623(Top 54%)8623(Top 153%)
23M23.00 mi1.25 mi9355-2107536-757536-7512982(Top 46%)8680(Top 54%)8680(Top 154%)
24M24.00 mi1.00 mi9552-1977604-687604-6813726(Top 48%)9004(Top 56%)9004(Top 160%)
40K24.85 mi0.85 mi9619-677605-17605-111804(Top 42%)7955(Top 49%)7955(Top 141%)
25.2M25.20 mi0.35 mi9625-67585+207585+2010536(Top 37%)7228(Top 45%)7228(Top 128%)
Finish26.22 mi1.02 mi9608+177535+507535+509579(Top 34%)6751(Top 42%)6751(Top 120%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21story building
+97ft-345ft

Overall

9161

Males

7641

M18-39

7641

5K→10K

3.1 - 6.2 mi

Top 36%
×5story building
+79ft-138ft

Overall

10170

Males

8242

M18-39

8242

10K→15K

6.2 - 9.3 mi

Top 32%
×3story building
+67ft-78ft

Overall

9161

Males

7641

M18-39

7641

15K→20K

9.3 - 12.4 mi

Top 28%
×5story building
+106ft-86ft

Overall

7865

Males

6788

M18-39

6788

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8723

Males

7335

M18-39

7335

Half→25K

13.1 - 15.5 mi

Top 34%
×4story building
+66ft-88ft

Overall

9545

Males

7621

M18-39

7621

25K→30K

15.5 - 18.6 mi

Top 32%
×9story building
+181ft-148ft

Overall

9137

Males

7214

M18-39

7214

30K→20M

18.6 - 20.0 mi

Top 38%
×5story building
+64ft-50ft

Overall

10806

Males

7940

M18-39

7940

20M→21M

20.0 - 21.0 mi

Top 33%
×8story building
+106ft-24ft

Overall

9508

Males

7106

M18-39

7106

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

12637

Males

8623

M18-39

8623

35K→23M

21.8 - 23.0 mi

Top 46%
×5story building
+23ft-63ft

Overall

12982

Males

8680

M18-39

8680

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

13726

Males

9004

M18-39

9004

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11804

Males

7955

M18-39

7955

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

10536

Males

7228

M18-39

7228

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2story building
+22ft-21ft

Overall

9579

Males

6751

M18-39

6751

Passing Analysis

Category:
Athletes Passed
1598
Passed By
2404
Net Change
-806
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8802
5K → 10K53697-644#8802#9446
10K → 15K208106+102#9446#9344
15K → 20K47215+457#9344#8887
20K → Half4022+18#8887#8869
Half → 25K129200-71#8869#8940
25K → 30K238193+45#8940#8895
30K → 20M67197-130#8895#9025
20M → 21M9699-3#9025#9028
21M → 35K34151-117#9028#9145
35K → 23M61271-210#9145#9355
23M → 24M34231-197#9355#9552
24M → 40K55122-67#9552#9619
40K → 25.2M3137-6#9619#9625
25.2M → Finish8063+17#9625#9608
TOTALS15982404-806
📊

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