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BOSTON MARATHON 2025

Michael Kloepfer

Bib: 16732•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 (M70-74)
#0 / 228
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:38
Rank: #23284
Start → 5K
28:38 | 9:13/mi
10K· 6.21 mi
59:38
Rank: #24447 (-1163)
5K → 10K
31:00 | 9:59/mi
15K· 9.32 mi
1:30:02
Rank: #24462 (-15)
10K → 15K
30:24 | 9:47/mi
20K· 12.43 mi
2:01:12
Rank: #24421 (+41)
15K → 20K
31:10 | 10:02/mi
Half· 13.11 mi
2:07:59
Rank: #24448 (-27)
20K → Half
6:47 | 9:57/mi
25K· 15.53 mi
2:32:05
Rank: #24227 (+221)
Half → 25K
24:06 | 9:56/mi
30K· 18.64 mi
3:05:33
Rank: #24114 (+113)
25K → 30K
33:28 | 10:46/mi
20M
3:21:16
Rank: #24151 (-37)
30K → 20M
15:43 | 11:34/mi
21M
3:32:35
Rank: #24059 (+92)
20M → 21M
11:19 | 11:19/mi
35K· 21.75 mi
3:40:49
Rank: #24066 (-7)
21M → 35K
8:14 | 11:00/mi
23M
3:54:17
Rank: #23956 (+110)
35K → 23M
13:28 | 10:45/mi
24M
4:05:00
Rank: #23938 (+18)
23M → 24M
10:43 | 10:43/mi
40K· 24.85 mi
4:14:16
Rank: #23893 (+45)
24M → 40K
9:16 | 10:50/mi
25.2M
4:18:28
Rank: #23901 (-8)
40K → 25.2M
4:12 | 12:11/mi
Finish· 26.22 mi
4:28:14
Rank: #23829 (+72)
25.2M → Finish
9:46 | 9:35/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:59
Pace9:46 /mi
2nd Half
Distance13.11 mi
Time2:20:15
Pace10:42 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:02:0528:389:1328:38
9:13
-
10K
6.21 mi11:33:0559:389:3631:00
9:59
+0:46
15K
9.32 mi12:03:291:30:029:4030:24
9:47
-0:12
20K
12.43 mi12:34:392:01:129:4531:10
10:02
+0:15
Half
13.11 mi12:41:262:07:599:466:47
9:57
-0:05
25K
15.53 mi13:05:322:32:059:4724:06
9:56
-0:01
30K
18.64 mi13:39:003:05:339:5733:28
10:46
+0:50
20M
20.00 mi13:54:433:21:1610:0415:43
11:34
+0:48
21M
21.00 mi14:06:023:32:3510:0711:19
11:19
-0:15
35K
21.75 mi14:14:163:40:4910:098:14
11:00
-0:19
23M
23.00 mi14:27:443:54:1710:1113:28
10:45
-0:15
24M
24.00 mi14:38:274:05:0010:1310:43
10:43
-0:02
40K
24.85 mi14:47:434:14:1610:149:16
10:50
+0:07
25.2M
25.20 mi14:51:554:18:2810:154:12
12:11
+1:21
Finish
26.22 mi15:01:414:28:1410:149:46
9:35
-2:36

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

9:13 /mi

Average Pace

10:14 /mi

Slowest Pace

12:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:51

60% of race

Time at Steady Pace

1:15:09

28% of race

Time at Slower Pace

31:14

12% of race

Average Pace: 10:14 /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 mi11:02:0528:389:1328:38
9:13
#23284
10K
6.21 mi11:33:0559:389:3631:00
9:59
#24447
15K
9.32 mi12:03:291:30:029:4030:24
9:47
#24462
20K
12.43 mi12:34:392:01:129:4531:10
10:02
#24421
Half
13.11 mi12:41:262:07:599:466:47
9:57
#24448
25K
15.53 mi13:05:322:32:059:4724:06
9:56
#24227
30K
18.64 mi13:39:003:05:339:5733:28
10:46
#24114
20M
20.00 mi13:54:433:21:1610:0415:43
11:34
#24151
21M
21.00 mi14:06:023:32:3510:0711:19
11:19
#24059
35K
21.75 mi14:14:163:40:4910:098:14
11:00
#24066
23M
23.00 mi14:27:443:54:1710:1113:28
10:45
#23956
24M
24.00 mi14:38:274:05:0010:1310:43
10:43
#23938
40K
24.85 mi14:47:434:14:1610:149:16
10:50
#23893
25.2M
25.20 mi14:51:554:18:2810:154:12
12:11
#23901
Finish
26.22 mi15:01:414:28:1410:149:46
9:35
#23829
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi23284138971389724512(Top 86%)14485(Top 90%)14485(Top 6353%)
10K6.21 mi3.10 mi24447-116314463-56614463-56625266(Top 89%)14821(Top 92%)14821(Top 6500%)
15K9.32 mi3.11 mi24462-1514461+214461+224512(Top 86%)14485(Top 90%)14485(Top 6353%)
20K12.43 mi3.11 mi24421+4114426+3514426+3524284(Top 85%)14350(Top 89%)14350(Top 6294%)
Half13.11 mi0.68 mi24448-2714439-1314439-1324699(Top 87%)14522(Top 90%)14522(Top 6369%)
25K15.53 mi2.42 mi24227+22114327+11214327+11223096(Top 81%)13788(Top 86%)13788(Top 6047%)
30K18.64 mi3.11 mi24114+11314264+6314264+6323544(Top 83%)13857(Top 86%)13857(Top 6078%)
20M20.00 mi1.36 mi24151-3714251+1314251+1324654(Top 87%)14297(Top 89%)14297(Top 6271%)
21M21.00 mi1.00 mi24059+9214198+5314198+5322188(Top 78%)13062(Top 81%)13062(Top 5729%)
35K21.75 mi0.75 mi24066-714191+714191+724201(Top 85%)13969(Top 87%)13969(Top 6127%)
23M23.00 mi1.25 mi23956+11014115+7614115+7622653(Top 80%)13176(Top 82%)13176(Top 5779%)
24M24.00 mi1.00 mi23938+1814101+1414101+1423354(Top 82%)13492(Top 84%)13492(Top 5918%)
40K24.85 mi0.85 mi23893+4514071+3014071+3022765(Top 80%)13125(Top 81%)13125(Top 5757%)
25.2M25.20 mi0.35 mi23901-814065+614065+623560(Top 83%)13550(Top 84%)13550(Top 5943%)
Finish26.22 mi1.02 mi23829+7214018+4714018+4721486(Top 76%)12533(Top 78%)12533(Top 5497%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21stories
+97ft-345ft

Overall

24512

Males

14485

M70-74

14485

5K→10K

3.1 - 6.2 mi

Top 89%
×5stories
+79ft-138ft

Overall

25266

Males

14821

M70-74

14821

10K→15K

6.2 - 9.3 mi

Top 86%
×3stories
+67ft-78ft

Overall

24512

Males

14485

M70-74

14485

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

24284

Males

14350

M70-74

14350

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

24699

Males

14522

M70-74

14522

Half→25K

13.1 - 15.5 mi

Top 81%
×4stories
+66ft-88ft

Overall

23096

Males

13788

M70-74

13788

25K→30K

15.5 - 18.6 mi

Top 83%
×9stories
+181ft-148ft

Overall

23544

Males

13857

M70-74

13857

30K→20M

18.6 - 20.0 mi

Top 87%
×5stories
+64ft-50ft

Overall

24654

Males

14297

M70-74

14297

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

22188

Males

13062

M70-74

13062

21M→35K

21.0 - 21.8 mi

Top 85%
×7stories
+17ft-86ft

Overall

24201

Males

13969

M70-74

13969

35K→23M

21.8 - 23.0 mi

Top 80%
×5stories
+23ft-63ft

Overall

22653

Males

13176

M70-74

13176

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

23354

Males

13492

M70-74

13492

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

22765

Males

13125

M70-74

13125

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

23560

Males

13550

M70-74

13550

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2stories
+22ft-21ft

Overall

21486

Males

12533

M70-74

12533

Passing Analysis

Category:
Athletes Passed
1354
Passed By
1899
Net Change
-545
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23284
5K → 10K261189-1163#23284#24447
10K → 15K135150-15#24447#24462
15K → 20K151110+41#24462#24421
20K → Half1744-27#24421#24448
Half → 25K24928+221#24448#24227
25K → 30K21299+113#24227#24114
30K → 20M74111-37#24114#24151
20M → 21M11220+92#24151#24059
21M → 35K3542-7#24059#24066
35K → 23M12212+110#24066#23956
23M → 24M5537+18#23956#23938
24M → 40K6116+45#23938#23893
40K → 25.2M1927-8#23893#23901
25.2M → Finish8614+72#23901#23829
TOTALS13541899-545
📊

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