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BOSTON MARATHON 2025

Christoph Keller

Bib: 19909•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:05
Rank: #21085
Start → 5K
27:05 | 8:43/mi
10K· 6.21 mi
54:54
Rank: #21636 (-551)
5K → 10K
27:49 | 8:57/mi
15K· 9.32 mi
1:22:28
Rank: #21521 (+115)
10K → 15K
27:34 | 8:52/mi
20K· 12.43 mi
1:50:16
Rank: #21288 (+233)
15K → 20K
27:48 | 8:57/mi
Half· 13.11 mi
1:56:22
Rank: #21310 (-22)
20K → Half
6:06 | 8:56/mi
25K· 15.53 mi
2:18:28
Rank: #21169 (+141)
Half → 25K
22:06 | 9:07/mi
30K· 18.64 mi
2:51:23
Rank: #21720 (-551)
25K → 30K
32:55 | 10:36/mi
20M
3:07:13
Rank: #22119 (-399)
30K → 20M
15:50 | 11:39/mi
21M
3:21:47
Rank: #22596 (-477)
20M → 21M
14:34 | 14:34/mi
35K· 21.75 mi
3:30:34
Rank: #22737 (-141)
21M → 35K
8:47 | 11:44/mi
23M
3:47:55
Rank: #23229 (-492)
35K → 23M
17:21 | 13:51/mi
24M
4:01:26
Rank: #23549 (-320)
23M → 24M
13:31 | 13:31/mi
40K· 24.85 mi
4:12:08
Rank: #23690 (-141)
24M → 40K
10:42 | 12:31/mi
25.2M
4:16:43
Rank: #23730 (-40)
40K → 25.2M
4:35 | 13:17/mi
Finish· 26.22 mi
4:27:18
Rank: #23733 (-3)
25.2M → Finish
10:35 | 10:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:22
Pace8:53 /mi
2nd Half
Distance13.11 mi
Time2:30:56
Pace11:31 /mi
📊Positive Split: 29.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:0527:058:4327:05
8:43
-
10K
6.21 mi11:46:5454:548:5027:49
8:57
+0:14
15K
9.32 mi12:14:281:22:288:5127:34
8:52
-0:05
20K
12.43 mi12:42:161:50:168:5227:48
8:57
+0:05
Half
13.11 mi12:48:221:56:228:536:06
8:56
-0:01
25K
15.53 mi13:10:282:18:288:5522:06
9:07
+0:11
30K
18.64 mi13:43:232:51:239:1232:55
10:36
+1:29
20M
20.00 mi13:59:133:07:139:2215:50
11:39
+1:03
21M
21.00 mi14:13:473:21:479:3714:34
14:34
+2:55
35K
21.75 mi14:22:343:30:349:418:47
11:44
-2:50
23M
23.00 mi14:39:553:47:559:5517:21
13:51
+2:07
24M
24.00 mi14:53:264:01:2610:0413:31
13:31
-0:20
40K
24.85 mi15:04:084:12:0810:0910:42
12:31
-1:00
25.2M
25.20 mi15:08:434:16:4310:114:35
13:17
+0:46
Finish
26.22 mi15:19:184:27:1810:1210:35
10:23
-2:54

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

8:43 /mi

Average Pace

10:12 /mi

Slowest Pace

14:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:28

52% of race

Time at Steady Pace

43:30

16% of race

Time at Slower Pace

1:25:20

32% of race

Average Pace: 10:12 /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 mi11:19:0527:058:4327:05
8:43
#21085
10K
6.21 mi11:46:5454:548:5027:49
8:57
#21636
15K
9.32 mi12:14:281:22:288:5127:34
8:52
#21521
20K
12.43 mi12:42:161:50:168:5227:48
8:57
#21288
Half
13.11 mi12:48:221:56:228:536:06
8:56
#21310
25K
15.53 mi13:10:282:18:288:5522:06
9:07
#21169
30K
18.64 mi13:43:232:51:239:1232:55
10:36
#21720
20M
20.00 mi13:59:133:07:139:2215:50
11:39
#22119
21M
21.00 mi14:13:473:21:479:3714:34
14:34
#22596
35K
21.75 mi14:22:343:30:349:418:47
11:44
#22737
23M
23.00 mi14:39:553:47:559:5517:21
13:51
#23229
24M
24.00 mi14:53:264:01:2610:0413:31
13:31
#23549
40K
24.85 mi15:04:084:12:0810:0910:42
12:31
#23690
25.2M
25.20 mi15:08:434:16:4310:114:35
13:17
#23730
Finish
26.22 mi15:19:184:27:1810:1210:35
10:23
#23733
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi21085129021290221410(Top 75%)13131(Top 82%)13131(Top 1043%)
10K6.21 mi3.10 mi21636-55113170-26813170-26822174(Top 78%)13420(Top 83%)13420(Top 1066%)
15K9.32 mi3.11 mi21521+11513147+2313147+2321410(Top 75%)13131(Top 82%)13131(Top 1043%)
20K12.43 mi3.11 mi21288+23313037+11013037+11020709(Top 73%)12761(Top 79%)12761(Top 1014%)
Half13.11 mi0.68 mi21310-2213044-713044-721567(Top 76%)13171(Top 82%)13171(Top 1046%)
25K15.53 mi2.42 mi21169+14112974+7012974+7020421(Top 72%)12603(Top 78%)12603(Top 1001%)
30K18.64 mi3.11 mi21720-55113195-22113195-22123156(Top 82%)13682(Top 85%)13682(Top 1087%)
20M20.00 mi1.36 mi22119-39913355-16013355-16024787(Top 87%)14369(Top 89%)14369(Top 1141%)
21M21.00 mi1.00 mi22596-47713534-17913534-17926768(Top 94%)15245(Top 95%)15245(Top 1211%)
35K21.75 mi0.75 mi22737-14113582-4813582-4825468(Top 90%)14573(Top 90%)14573(Top 1158%)
23M23.00 mi1.25 mi23229-49213777-19513777-19527197(Top 96%)15424(Top 96%)15424(Top 1225%)
24M24.00 mi1.00 mi23549-32013918-14113918-14127333(Top 96%)15450(Top 96%)15450(Top 1227%)
40K24.85 mi0.85 mi23690-14113965-4713965-4725671(Top 90%)14623(Top 91%)14623(Top 1161%)
25.2M25.20 mi0.35 mi23730-4013981-1613981-1625403(Top 89%)14447(Top 90%)14447(Top 1147%)
Finish26.22 mi1.02 mi23733-313975+613975+624000(Top 84%)13768(Top 85%)13768(Top 1094%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21stories
+97ft-345ft

Overall

21410

Males

13131

M60-64

13131

5K→10K

3.1 - 6.2 mi

Top 78%
×5stories
+79ft-138ft

Overall

22174

Males

13420

M60-64

13420

10K→15K

6.2 - 9.3 mi

Top 75%
×3stories
+67ft-78ft

Overall

21410

Males

13131

M60-64

13131

15K→20K

9.3 - 12.4 mi

Top 73%
×5stories
+106ft-86ft

Overall

20709

Males

12761

M60-64

12761

20K→Half

12.4 - 13.1 mi

Top 76%
×2stories
+19ft-37ft

Overall

21567

Males

13171

M60-64

13171

Half→25K

13.1 - 15.5 mi

Top 72%
×4stories
+66ft-88ft

Overall

20421

Males

12603

M60-64

12603

25K→30K

15.5 - 18.6 mi

Top 82%
×9stories
+181ft-148ft

Overall

23156

Males

13682

M60-64

13682

30K→20M

18.6 - 20.0 mi

Top 87%
×5stories
+64ft-50ft

Overall

24787

Males

14369

M60-64

14369

20M→21M

20.0 - 21.0 mi

Top 94%
×8stories
+106ft-24ft

Overall

26768

Males

15245

M60-64

15245

21M→35K

21.0 - 21.8 mi

Top 90%
×7stories
+17ft-86ft

Overall

25468

Males

14573

M60-64

14573

35K→23M

21.8 - 23.0 mi

Top 96%
×5stories
+23ft-63ft

Overall

27197

Males

15424

M60-64

15424

23M→24M

23.0 - 24.0 mi

Top 96%
×6stories
+12ft-82ft

Overall

27333

Males

15450

M60-64

15450

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

25671

Males

14623

M60-64

14623

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

25403

Males

14447

M60-64

14447

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2stories
+22ft-21ft

Overall

24000

Males

13768

M60-64

13768

Passing Analysis

Category:
Athletes Passed
1133
Passed By
3781
Net Change
-2648
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21085
5K → 10K102653-551#21085#21636
10K → 15K268153+115#21636#21521
15K → 20K31784+233#21521#21288
20K → Half2951-22#21288#21310
Half → 25K21372+141#21310#21169
25K → 30K73624-551#21169#21720
30K → 20M23422-399#21720#22119
20M → 21M17494-477#22119#22596
21M → 35K20161-141#22596#22737
35K → 23M12504-492#22737#23229
23M → 24M8328-320#23229#23549
24M → 40K13154-141#23549#23690
40K → 25.2M444-40#23690#23730
25.2M → Finish3437-3#23730#23733
TOTALS11333781-2648
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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