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BOSTON MARATHON 2025

Kenneth Grohe

Bib: 27143•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
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
11:33/mi
35:52
↑ 97↓ 3451.5%
10K· 6.21 mi
11:42/mi
1:12:12
↑ 79↓ 1380.4%
15K· 9.32 mi
11:21/mi
1:47:28
↑ 67↓ 78
20K· 12.43 mi
11:57/mi
2:24:35
↑ 106↓ 860.1%
Half· 13.11 mi
11:08/mi
2:32:11
↑ 19↓ 370.5%
25K· 15.53 mi
11:54/mi
3:01:03
↑ 66↓ 880.2%
30K· 18.64 mi
13:32/mi
3:43:06
↑ 181↓ 1480.2%
20M
14:32/mi
4:02:51
↑ 64↓ 500.2%
21M
15:43/mi
4:18:34
↑ 106↓ 241.6%
35K· 21.75 mi
12:17/mi
4:27:45
↑ 17↓ 861.7%
23M
12:54/mi
4:43:54
↑ 23↓ 630.6%
24M
13:08/mi
4:57:02
↓ 821.3%
40K· 24.85 mi
13:11/mi
5:08:18
↓ 200.3%
25.2M
14:53/mi
5:13:26
↑ 13↓ 160.2%
Finish· 26.22 mi
11:40/mi
5:25:19
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:32:11
Pace11:37 /mi
2nd Half
Distance13.11 mi
Time2:53:08
Pace13:12 /mi
📊Positive Split: 13.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:57:0035:5211:3335:52
11:33
-
10K
6.21 mi12:33:201:12:1211:3736:20
11:42
+0:09
15K
9.32 mi13:08:361:47:2811:3235:16
11:21
-0:21
20K
12.43 mi13:45:432:24:3511:3837:07
11:57
+0:36
Half
13.11 mi13:53:192:32:1111:377:36
11:08
-0:49
25K
15.53 mi14:22:113:01:0311:3928:52
11:54
+0:46
30K
18.64 mi15:04:143:43:0611:5842:03
13:32
+1:38
20M
20.00 mi15:23:594:02:5112:0919:45
14:32
+1:00
21M
21.00 mi15:39:424:18:3412:1915:43
15:43
+1:11
35K
21.75 mi15:48:534:27:4512:199:11
12:17
-3:26
23M
23.00 mi16:05:024:43:5412:2116:09
12:54
+0:37
24M
24.00 mi16:18:104:57:0212:2313:08
13:08
+0:14
40K
24.85 mi16:29:265:08:1812:2411:16
13:11
+0:03
25.2M
25.20 mi16:34:345:13:2612:265:08
14:53
+1:42
Finish
26.22 mi16:46:275:25:1912:2511:53
11:40
-3:13

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

11:08 /mi

Average Pace

12:25 /mi

Slowest Pace

15:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:18:44

24% of race

Time at Steady Pace

2:19:32

43% of race

Time at Slower Pace

1:47:03

33% of race

Average Pace: 12:24 /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 mi11:57:0035:5211:3335:52
11:33
#28048
10K
6.21 mi12:33:201:12:1211:3736:20
11:42
#27900
15K
9.32 mi13:08:361:47:2811:3235:16
11:21
#27657
20K
12.43 mi13:45:432:24:3511:3837:07
11:57
#27510
Half
13.11 mi13:53:192:32:1111:377:36
11:08
#27474
25K
15.53 mi14:22:113:01:0311:3928:52
11:54
#27262
30K
18.64 mi15:04:143:43:0611:5842:03
13:32
#27262
20M
20.00 mi15:23:594:02:5112:0919:45
14:32
#27317
21M
21.00 mi15:39:424:18:3412:1915:43
15:43
#27365
35K
21.75 mi15:48:534:27:4512:199:11
12:17
#27334
23M
23.00 mi16:05:024:43:5412:2116:09
12:54
#27296
24M
24.00 mi16:18:104:57:0212:2313:08
13:08
#27292
40K
24.85 mi16:29:265:08:1812:2411:16
13:11
#27278
25.2M
25.20 mi16:34:345:13:2612:265:08
14:53
#27284
Finish
26.22 mi16:46:275:25:1912:2511:53
11:40
#27261
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi28048159881598827089(Top 95%)15592(Top 97%)15592(Top 946%)
10K6.21 mi3.10 mi27900+14815935+5315935+5327751(Top 98%)15873(Top 99%)15873(Top 963%)
15K9.32 mi3.11 mi27657+24315831+10415831+10427089(Top 95%)15592(Top 97%)15592(Top 946%)
20K12.43 mi3.11 mi27510+14715773+5815773+5827066(Top 95%)15567(Top 97%)15567(Top 945%)
Half13.11 mi0.68 mi27474+3615758+1515758+1526704(Top 94%)15398(Top 96%)15398(Top 934%)
25K15.53 mi2.42 mi27262+21215657+10115657+10126349(Top 93%)15230(Top 95%)15230(Top 924%)
30K18.64 mi3.11 mi2726215635+2215635+2227166(Top 96%)15510(Top 96%)15510(Top 941%)
20M20.00 mi1.36 mi27317-5515653-1815653-1827655(Top 97%)15691(Top 97%)15691(Top 952%)
21M21.00 mi1.00 mi27365-4815664-1115664-1127674(Top 97%)15709(Top 98%)15709(Top 953%)
35K21.75 mi0.75 mi27334+3115648+1615648+1626228(Top 92%)14954(Top 93%)14954(Top 907%)
23M23.00 mi1.25 mi27296+3815621+2715621+2726269(Top 92%)14969(Top 93%)14969(Top 908%)
24M24.00 mi1.00 mi27292+415614+715614+726997(Top 95%)15298(Top 95%)15298(Top 928%)
40K24.85 mi0.85 mi27278+1415607+715607+726471(Top 93%)15035(Top 93%)15035(Top 912%)
25.2M25.20 mi0.35 mi27284-6156071560727049(Top 95%)15295(Top 95%)15295(Top 928%)
Finish26.22 mi1.02 mi27261+2315591+1615591+1626390(Top 93%)14990(Top 93%)14990(Top 910%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21story building
+97ft-345ft

Overall

27089

Males

15592

M55-59

15592

5K→10K

3.1 - 6.2 mi

Top 98%
×5story building
+79ft-138ft

Overall

27751

Males

15873

M55-59

15873

10K→15K

6.2 - 9.3 mi

Top 95%
×3story building
+67ft-78ft

Overall

27089

Males

15592

M55-59

15592

15K→20K

9.3 - 12.4 mi

Top 95%
×5story building
+106ft-86ft

Overall

27066

Males

15567

M55-59

15567

20K→Half

12.4 - 13.1 mi

Top 94%
×2story building
+19ft-37ft

Overall

26704

Males

15398

M55-59

15398

Half→25K

13.1 - 15.5 mi

Top 93%
×4story building
+66ft-88ft

Overall

26349

Males

15230

M55-59

15230

25K→30K

15.5 - 18.6 mi

Top 96%
×9story building
+181ft-148ft

Overall

27166

Males

15510

M55-59

15510

30K→20M

18.6 - 20.0 mi

Top 97%
×5story building
+64ft-50ft

Overall

27655

Males

15691

M55-59

15691

20M→21M

20.0 - 21.0 mi

Top 97%
×8story building
+106ft-24ft

Overall

27674

Males

15709

M55-59

15709

21M→35K

21.0 - 21.8 mi

Top 92%
×7story building
+17ft-86ft

Overall

26228

Males

14954

M55-59

14954

35K→23M

21.8 - 23.0 mi

Top 92%
×5story building
+23ft-63ft

Overall

26269

Males

14969

M55-59

14969

23M→24M

23.0 - 24.0 mi

Top 95%
×6story building
+12ft-82ft

Overall

26997

Males

15298

M55-59

15298

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

26471

Males

15035

M55-59

15035

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

27049

Males

15295

M55-59

15295

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2story building
+22ft-21ft

Overall

26390

Males

14990

M55-59

14990

Passing Analysis

Category:
Athletes Passed
1109
Passed By
322
Net Change
+787
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28048
5K → 10K17123+148#28048#27900
10K → 15K2518+243#27900#27657
15K → 20K16720+147#27657#27510
20K → Half371+36#27510#27474
Half → 25K2186+212#27474#27262
25K → 30K85850#27262#27262
30K → 20M1065-55#27262#27317
20M → 21M1159-48#27317#27365
21M → 35K332+31#27365#27334
35K → 23M4911+38#27334#27296
23M → 24M2218+4#27296#27292
24M → 40K2410+14#27292#27278
40K → 25.2M410-6#27278#27284
25.2M → Finish274+23#27284#27261
TOTALS1109322+787
📊

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