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BOSTON MARATHON 2023

Warren Kerper

Bib: 20163•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
26:19
Rank: #17351
Start → 5K
26:19 | 8:28/mi
10K· 6.21 mi
52:49
Rank: #17903 (-552)
5K → 10K
26:30 | 8:32/mi
15K· 9.32 mi
1:19:34
Rank: #18086 (-183)
10K → 15K
26:45 | 8:37/mi
20K· 12.43 mi
1:46:36
Rank: #18076 (+10)
15K → 20K
27:02 | 8:42/mi
Half· 13.11 mi
1:52:28
Rank: #18078 (-2)
20K → Half
5:52 | 8:36/mi
25K· 15.53 mi
2:13:54
Rank: #18071 (+7)
Half → 25K
21:26 | 8:50/mi
30K· 18.64 mi
2:42:12
Rank: #17984 (+87)
25K → 30K
28:18 | 9:07/mi
20M
2:54:34
Rank: #17895 (+89)
30K → 20M
12:22 | 9:06/mi
21M
3:04:15
Rank: #17810 (+85)
20M → 21M
9:41 | 9:41/mi
35K· 21.75 mi
3:10:48
Rank: #17768 (+42)
21M → 35K
6:33 | 8:45/mi
23M
3:22:14
Rank: #17717 (+51)
35K → 23M
11:26 | 9:08/mi
24M
3:31:01
Rank: #17664 (+53)
23M → 24M
8:47 | 8:47/mi
40K· 24.85 mi
3:38:50
Rank: #17648 (+16)
24M → 40K
7:49 | 9:09/mi
25.2M
3:42:12
Rank: #17620 (+28)
40K → 25.2M
3:22 | 9:46/mi
Finish· 26.22 mi
3:51:06
Rank: #17584 (+36)
25.2M → Finish
8:54 | 8:44/mi

Course Map & Elevation

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:28
Pace8:35 /mi
2nd Half
Distance13.11 mi
Time1:58:38
Pace9:03 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:2726:198:2826:19
8:28
-
10K
6.21 mi11:44:5752:498:3026:30
8:32
+0:04
15K
9.32 mi12:11:421:19:348:3226:45
8:37
+0:05
20K
12.43 mi12:38:441:46:368:3527:02
8:42
+0:05
Half
13.11 mi12:44:361:52:288:355:52
8:36
-0:06
25K
15.53 mi13:06:022:13:548:3721:26
8:50
+0:14
30K
18.64 mi13:34:202:42:128:4228:18
9:07
+0:17
20M
20.00 mi13:46:422:54:348:4412:22
9:06
-0:01
21M
21.00 mi13:56:233:04:158:469:41
9:41
+0:35
35K
21.75 mi14:02:563:10:488:466:33
8:45
-0:56
23M
23.00 mi14:14:223:22:148:4811:26
9:08
+0:23
24M
24.00 mi14:23:093:31:018:488:47
8:47
-0:21
40K
24.85 mi14:30:583:38:508:487:49
9:09
+0:22
25.2M
25.20 mi14:34:203:42:128:493:22
9:46
+0:37
Finish
26.22 mi14:43:143:51:068:498:54
8:44
-1:02

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

8:49 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

3:38:03

94% of race

Time at Steady Pace

13:03

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:49 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:18:2726:198:2826:19
8:28
#17351
10K
6.21 mi11:44:5752:498:3026:30
8:32
#17903
15K
9.32 mi12:11:421:19:348:3226:45
8:37
#18086
20K
12.43 mi12:38:441:46:368:3527:02
8:42
#18076
Half
13.11 mi12:44:361:52:288:355:52
8:36
#18078
25K
15.53 mi13:06:022:13:548:3721:26
8:50
#18071
30K
18.64 mi13:34:202:42:128:4228:18
9:07
#17984
20M
20.00 mi13:46:422:54:348:4412:22
9:06
#17895
21M
21.00 mi13:56:233:04:158:469:41
9:41
#17810
35K
21.75 mi14:02:563:10:488:466:33
8:45
#17768
23M
23.00 mi14:14:223:22:148:4811:26
9:08
#17717
24M
24.00 mi14:23:093:31:018:488:47
8:47
#17664
40K
24.85 mi14:30:583:38:508:487:49
9:09
#17648
25.2M
25.20 mi14:34:203:42:128:493:22
9:46
#17620
Finish
26.22 mi14:43:143:51:068:498:54
8:44
#17584
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi17351111701117018505(Top 70%)11682(Top 77%)11682(Top 1052%)
10K6.21 mi3.10 mi17903-55211415-24511415-24518422(Top 69%)11673(Top 77%)11673(Top 1052%)
15K9.32 mi3.11 mi18086-18311492-7711492-7718505(Top 70%)11682(Top 77%)11682(Top 1052%)
20K12.43 mi3.11 mi18076+1011497-511497-518119(Top 68%)11519(Top 76%)11519(Top 1038%)
Half13.11 mi0.68 mi18078-211503-611503-618282(Top 69%)11601(Top 76%)11601(Top 1045%)
25K15.53 mi2.42 mi18071+711477+2611477+2618160(Top 68%)11499(Top 76%)11499(Top 1036%)
30K18.64 mi3.11 mi17984+8711408+6911408+6917725(Top 67%)11226(Top 74%)11226(Top 1011%)
20M20.00 mi1.36 mi17895+8911353+5511353+5517043(Top 64%)10839(Top 71%)10839(Top 976%)
21M21.00 mi1.00 mi17810+8511313+4011313+4016759(Top 63%)10693(Top 70%)10693(Top 963%)
35K21.75 mi0.75 mi17768+4211282+3111282+3116687(Top 63%)10573(Top 70%)10573(Top 953%)
23M23.00 mi1.25 mi17717+5111245+3711245+3716685(Top 63%)10537(Top 69%)10537(Top 949%)
24M24.00 mi1.00 mi17664+5311210+3511210+3516097(Top 60%)10225(Top 67%)10225(Top 921%)
40K24.85 mi0.85 mi17648+1611196+1411196+1416810(Top 63%)10498(Top 69%)10498(Top 946%)
25.2M25.20 mi0.35 mi17620+2811175+2111175+2116342(Top 61%)10265(Top 68%)10265(Top 925%)
Finish26.22 mi1.02 mi17584+3611155+2011155+2016662(Top 63%)10461(Top 69%)10461(Top 942%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21stories
+97ft-345ft

Overall

18505

Males

11682

M60-64

11682

5K→10K

3.1 - 6.2 mi

Top 69%
×5stories
+79ft-138ft

Overall

18422

Males

11673

M60-64

11673

10K→15K

6.2 - 9.3 mi

Top 70%
×3stories
+67ft-78ft

Overall

18505

Males

11682

M60-64

11682

15K→20K

9.3 - 12.4 mi

Top 68%
×5stories
+106ft-86ft

Overall

18119

Males

11519

M60-64

11519

20K→Half

12.4 - 13.1 mi

Top 69%
×2stories
+19ft-37ft

Overall

18282

Males

11601

M60-64

11601

Half→25K

13.1 - 15.5 mi

Top 68%
×4stories
+66ft-88ft

Overall

18160

Males

11499

M60-64

11499

25K→30K

15.5 - 18.6 mi

Top 67%
×9stories
+181ft-148ft

Overall

17725

Males

11226

M60-64

11226

30K→20M

18.6 - 20.0 mi

Top 64%
×5stories
+64ft-50ft

Overall

17043

Males

10839

M60-64

10839

20M→21M

20.0 - 21.0 mi

Top 63%
×8stories
+106ft-24ft

Overall

16759

Males

10693

M60-64

10693

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

16687

Males

10573

M60-64

10573

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

16685

Males

10537

M60-64

10537

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

16097

Males

10225

M60-64

10225

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16810

Males

10498

M60-64

10498

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

16342

Males

10265

M60-64

10265

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

16662

Males

10461

M60-64

10461

Passing Analysis

Category:
Athletes Passed
1524
Passed By
1757
Net Change
-233
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17351
5K → 10K120672-552#17351#17903
10K → 15K128311-183#17903#18086
15K → 20K175165+10#18086#18076
20K → Half2426-2#18076#18078
Half → 25K132125+7#18078#18071
25K → 30K234147+87#18071#17984
30K → 20M13243+89#17984#17895
20M → 21M12439+85#17895#17810
21M → 35K7028+42#17810#17768
35K → 23M10756+51#17768#17717
23M → 24M8936+53#17717#17664
24M → 40K6347+16#17664#17648
40K → 25.2M4214+28#17648#17620
25.2M → Finish8448+36#17620#17584
TOTALS15241757-233
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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