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BOSTON MARATHON 2023

Dennis Walther

Bib: 29008•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:16
Rank: #23581
Start → 5K
31:16 | 10:04/mi
10K· 6.21 mi
1:00:23
Rank: #22951 (+630)
5K → 10K
29:07 | 9:22/mi
15K· 9.32 mi
1:29:33
Rank: #22614 (+337)
10K → 15K
29:10 | 9:23/mi
20K· 12.43 mi
1:59:30
Rank: #22449 (+165)
15K → 20K
29:57 | 9:38/mi
Half· 13.11 mi
2:06:09
Rank: #22473 (-24)
20K → Half
6:39 | 9:45/mi
25K· 15.53 mi
2:30:39
Rank: #22468 (+5)
Half → 25K
24:30 | 10:06/mi
30K· 18.64 mi
3:04:45
Rank: #22588 (-120)
25K → 30K
34:06 | 10:59/mi
20M
3:18:51
Rank: #22500 (+88)
30K → 20M
14:06 | 10:23/mi
21M
3:30:38
Rank: #22493 (+7)
20M → 21M
11:47 | 11:47/mi
35K· 21.75 mi
3:38:30
Rank: #22494 (-1)
21M → 35K
7:52 | 10:31/mi
23M
3:50:46
Rank: #22325 (+169)
35K → 23M
12:16 | 9:48/mi
24M
4:00:36
Rank: #22246 (+79)
23M → 24M
9:50 | 9:50/mi
40K· 24.85 mi
4:08:54
Rank: #22139 (+107)
24M → 40K
8:18 | 9:42/mi
25.2M
4:12:39
Rank: #22106 (+33)
40K → 25.2M
3:45 | 10:52/mi
Finish· 26.22 mi
4:22:02
Rank: #22019 (+87)
25.2M → Finish
9:23 | 9:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:09
Pace9:37 /mi
2nd Half
Distance13.11 mi
Time2:15:53
Pace10:22 /mi
📊Positive Split: 7.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:5631:1610:0431:16
10:04
-
10K
6.21 mi12:20:031:00:239:4329:07
9:22
-0:42
15K
9.32 mi12:49:131:29:339:3629:10
9:23
+0:01
20K
12.43 mi13:19:101:59:309:3729:57
9:38
+0:15
Half
13.11 mi13:25:492:06:099:376:39
9:45
+0:07
25K
15.53 mi13:50:192:30:399:4224:30
10:06
+0:21
30K
18.64 mi14:24:253:04:459:5534:06
10:59
+0:53
20M
20.00 mi14:38:313:18:519:5714:06
10:23
-0:36
21M
21.00 mi14:50:183:30:3810:0211:47
11:47
+1:24
35K
21.75 mi14:58:103:38:3010:037:52
10:31
-1:16
23M
23.00 mi15:10:263:50:4610:0212:16
9:48
-0:43
24M
24.00 mi15:20:164:00:3610:029:50
9:50
+0:02
40K
24.85 mi15:28:344:08:5410:018:18
9:42
-0:08
25.2M
25.20 mi15:32:194:12:3910:023:45
10:52
+1:10
Finish
26.22 mi15:41:424:22:0210:009:23
9:12
-1:40

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

9:12 /mi

Average Pace

10:00 /mi

Slowest Pace

11:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:07:40

26% of race

Time at Steady Pace

2:02:46

47% of race

Time at Slower Pace

1:11:36

27% of race

Average Pace: 10:00 /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 mi11:50:5631:1610:0431:16
10:04
#23581
10K
6.21 mi12:20:031:00:239:4329:07
9:22
#22951
15K
9.32 mi12:49:131:29:339:3629:10
9:23
#22614
20K
12.43 mi13:19:101:59:309:3729:57
9:38
#22449
Half
13.11 mi13:25:492:06:099:376:39
9:45
#22473
25K
15.53 mi13:50:192:30:399:4224:30
10:06
#22468
30K
18.64 mi14:24:253:04:459:5534:06
10:59
#22588
20M
20.00 mi14:38:313:18:519:5714:06
10:23
#22500
21M
21.00 mi14:50:183:30:3810:0211:47
11:47
#22493
35K
21.75 mi14:58:103:38:3010:037:52
10:31
#22494
23M
23.00 mi15:10:263:50:4610:0212:16
9:48
#22325
24M
24.00 mi15:20:164:00:3610:029:50
9:50
#22246
40K
24.85 mi15:28:344:08:5410:018:18
9:42
#22139
25.2M
25.20 mi15:32:194:12:3910:023:45
10:52
#22106
Finish
26.22 mi15:41:424:22:0210:009:23
9:12
#22019
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23581138681386821922(Top 82%)13155(Top 87%)13155(Top 249%)
10K6.21 mi3.10 mi22951+63013595+27313595+27322143(Top 83%)13223(Top 87%)13223(Top 250%)
15K9.32 mi3.11 mi22614+33713445+15013445+15021922(Top 82%)13155(Top 87%)13155(Top 249%)
20K12.43 mi3.11 mi22449+16513370+7513370+7521969(Top 83%)13164(Top 87%)13164(Top 249%)
Half13.11 mi0.68 mi22473-2413378-813378-822738(Top 85%)13508(Top 89%)13508(Top 256%)
25K15.53 mi2.42 mi22468+513355+2313355+2322435(Top 84%)13333(Top 88%)13333(Top 252%)
30K18.64 mi3.11 mi22588-12013384-2913384-2923048(Top 87%)13547(Top 89%)13547(Top 256%)
20M20.00 mi1.36 mi22500+8813341+4313341+4321456(Top 81%)12762(Top 84%)12762(Top 241%)
21M21.00 mi1.00 mi22493+713332+913332+922385(Top 84%)13149(Top 87%)13149(Top 249%)
35K21.75 mi0.75 mi22494-113331+113331+122413(Top 84%)13114(Top 86%)13114(Top 248%)
23M23.00 mi1.25 mi22325+16913246+8513246+8519424(Top 73%)11764(Top 78%)11764(Top 223%)
24M24.00 mi1.00 mi22246+7913209+3713209+3720330(Top 76%)12140(Top 80%)12140(Top 230%)
40K24.85 mi0.85 mi22139+10713154+5513154+5519044(Top 72%)11505(Top 76%)11505(Top 218%)
25.2M25.20 mi0.35 mi22106+3313133+2113133+2120154(Top 76%)12000(Top 79%)12000(Top 227%)
Finish26.22 mi1.02 mi22019+8713087+4613087+4618949(Top 71%)11517(Top 76%)11517(Top 218%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

21922

Males

13155

M18-39

13155

5K→10K

3.1 - 6.2 mi

Top 83%
×5stories
+79ft-138ft

Overall

22143

Males

13223

M18-39

13223

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

21922

Males

13155

M18-39

13155

15K→20K

9.3 - 12.4 mi

Top 83%
×5stories
+106ft-86ft

Overall

21969

Males

13164

M18-39

13164

20K→Half

12.4 - 13.1 mi

Top 85%
×2stories
+19ft-37ft

Overall

22738

Males

13508

M18-39

13508

Half→25K

13.1 - 15.5 mi

Top 84%
×4stories
+66ft-88ft

Overall

22435

Males

13333

M18-39

13333

25K→30K

15.5 - 18.6 mi

Top 87%
×9stories
+181ft-148ft

Overall

23048

Males

13547

M18-39

13547

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

21456

Males

12762

M18-39

12762

20M→21M

20.0 - 21.0 mi

Top 84%
×8stories
+106ft-24ft

Overall

22385

Males

13149

M18-39

13149

21M→35K

21.0 - 21.8 mi

Top 84%
×7stories
+17ft-86ft

Overall

22413

Males

13114

M18-39

13114

35K→23M

21.8 - 23.0 mi

Top 73%
×5stories
+23ft-63ft

Overall

19424

Males

11764

M18-39

11764

23M→24M

23.0 - 24.0 mi

Top 76%
×6stories
+12ft-82ft

Overall

20330

Males

12140

M18-39

12140

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

19044

Males

11505

M18-39

11505

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

20154

Males

12000

M18-39

12000

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2stories
+22ft-21ft

Overall

18949

Males

11517

M18-39

11517

Passing Analysis

Category:
Athletes Passed
2145
Passed By
583
Net Change
+1562
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23581
5K → 10K66737+630#23581#22951
10K → 15K36427+337#22951#22614
15K → 20K22257+165#22614#22449
20K → Half1741-24#22449#22473
Half → 25K10196+5#22473#22468
25K → 30K74194-120#22468#22588
30K → 20M10113+88#22588#22500
20M → 21M6255+7#22500#22493
21M → 35K3637-1#22493#22494
35K → 23M1734+169#22494#22325
23M → 24M889+79#22325#22246
24M → 40K1103+107#22246#22139
40K → 25.2M396+33#22139#22106
25.2M → Finish914+87#22106#22019
TOTALS2145583+1562
📊

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