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BOSTON MARATHON 2023

Dan Thumm

Bib: 9847•M

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:28
Rank: #15456
Start → 5K
25:28 | 8:12/mi
10K· 6.21 mi
51:32
Rank: #16458 (-1002)
5K → 10K
26:04 | 8:23/mi
15K· 9.32 mi
1:18:14
Rank: #17157 (-699)
10K → 15K
26:42 | 8:36/mi
20K· 12.43 mi
1:46:36
Rank: #18077 (-920)
15K → 20K
28:22 | 9:08/mi
Half· 13.11 mi
1:52:27
Rank: #18075 (+2)
20K → Half
5:51 | 8:34/mi
25K· 15.53 mi
2:14:16
Rank: #18227 (-152)
Half → 25K
21:49 | 9:00/mi
30K· 18.64 mi
2:43:04
Rank: #18266 (-39)
25K → 30K
28:48 | 9:16/mi
20M
2:55:42
Rank: #18243 (+23)
30K → 20M
12:38 | 9:18/mi
21M
3:05:24
Rank: #18140 (+103)
20M → 21M
9:42 | 9:42/mi
35K· 21.75 mi
3:12:14
Rank: #18167 (-27)
21M → 35K
6:50 | 9:08/mi
23M
3:24:08
Rank: #18178 (-11)
35K → 23M
11:54 | 9:30/mi
24M
3:33:27
Rank: #18210 (-32)
23M → 24M
9:19 | 9:19/mi
40K· 24.85 mi
3:41:33
Rank: #18218 (-8)
24M → 40K
8:06 | 9:28/mi
25.2M
3:45:01
Rank: #18215 (+3)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
3:54:22
Rank: #18239 (-24)
25.2M → Finish
9:21 | 9:11/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:27
Pace8:35 /mi
2nd Half
Distance13.11 mi
Time2:01:55
Pace9:18 /mi
📊Positive Split: 8.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:5425:288:1225:28
8:12
-
10K
6.21 mi11:17:5851:328:1826:04
8:23
+0:11
15K
9.32 mi11:44:401:18:148:2426:42
8:36
+0:13
20K
12.43 mi12:13:021:46:368:3528:22
9:08
+0:32
Half
13.11 mi12:18:531:52:278:355:51
8:34
-0:34
25K
15.53 mi12:40:422:14:168:3921:49
9:00
+0:26
30K
18.64 mi13:09:302:43:048:4528:48
9:16
+0:16
20M
20.00 mi13:22:082:55:428:4712:38
9:18
+0:02
21M
21.00 mi13:31:503:05:248:509:42
9:42
+0:24
35K
21.75 mi13:38:403:12:148:506:50
9:08
-0:34
23M
23.00 mi13:50:343:24:088:5311:54
9:30
+0:22
24M
24.00 mi13:59:533:33:278:549:19
9:19
-0:11
40K
24.85 mi14:07:593:41:338:558:06
9:28
+0:09
25.2M
25.20 mi14:11:273:45:018:563:28
10:03
+0:35
Finish
26.22 mi14:20:483:54:228:579:21
9:11
-0:52

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

8:12 /mi

Average Pace

8:57 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:24:05

36% of race

Time at Steady Pace

1:57:07

50% of race

Time at Slower Pace

33:10

14% of race

Average Pace: 8:56 /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 mi10:51:5425:288:1225:28
8:12
#15456
10K
6.21 mi11:17:5851:328:1826:04
8:23
#16458
15K
9.32 mi11:44:401:18:148:2426:42
8:36
#17157
20K
12.43 mi12:13:021:46:368:3528:22
9:08
#18077
Half
13.11 mi12:18:531:52:278:355:51
8:34
#18075
25K
15.53 mi12:40:422:14:168:3921:49
9:00
#18227
30K
18.64 mi13:09:302:43:048:4528:48
9:16
#18266
20M
20.00 mi13:22:082:55:428:4712:38
9:18
#18243
21M
21.00 mi13:31:503:05:248:509:42
9:42
#18140
35K
21.75 mi13:38:403:12:148:506:50
9:08
#18167
23M
23.00 mi13:50:343:24:088:5311:54
9:30
#18178
24M
24.00 mi13:59:533:33:278:549:19
9:19
#18210
40K
24.85 mi14:07:593:41:338:558:06
9:28
#18218
25.2M
25.20 mi14:11:273:45:018:563:28
10:03
#18215
Finish
26.22 mi14:20:483:54:228:579:21
9:11
#18239
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi15456105041050418392(Top 69%)11642(Top 77%)11642(Top 520%)
10K6.21 mi3.10 mi16458-100210882-37810882-37817513(Top 66%)11305(Top 74%)11305(Top 504%)
15K9.32 mi3.11 mi17157-69911133-25111133-25118392(Top 69%)11642(Top 77%)11642(Top 520%)
20K12.43 mi3.11 mi18077-92011498-36511498-36520271(Top 76%)12423(Top 82%)12423(Top 554%)
Half13.11 mi0.68 mi18075+211502-411502-418138(Top 68%)11544(Top 76%)11544(Top 515%)
25K15.53 mi2.42 mi18227-15211540-3811540-3818929(Top 71%)11816(Top 78%)11816(Top 527%)
30K18.64 mi3.11 mi18266-3911522+1811522+1818478(Top 69%)11551(Top 76%)11551(Top 515%)
20M20.00 mi1.36 mi18243+2311497+2511497+2517999(Top 68%)11234(Top 74%)11234(Top 501%)
21M21.00 mi1.00 mi18140+10311434+6311434+6316836(Top 63%)10724(Top 71%)10724(Top 479%)
35K21.75 mi0.75 mi18167-2711442-811442-818448(Top 69%)11349(Top 75%)11349(Top 506%)
23M23.00 mi1.25 mi18178-1111443-111443-118342(Top 69%)11282(Top 74%)11282(Top 503%)
24M24.00 mi1.00 mi18210-3211444-111444-118506(Top 70%)11312(Top 75%)11312(Top 505%)
40K24.85 mi0.85 mi18218-811433+1111433+1118237(Top 69%)11148(Top 73%)11148(Top 497%)
25.2M25.20 mi0.35 mi18215+311426+711426+717561(Top 66%)10818(Top 71%)10818(Top 483%)
Finish26.22 mi1.02 mi18239-2411429-311429-318787(Top 71%)11439(Top 75%)11439(Top 510%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

18392

Males

11642

M40-44

11642

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

17513

Males

11305

M40-44

11305

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

18392

Males

11642

M40-44

11642

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

20271

Males

12423

M40-44

12423

20K→Half

12.4 - 13.1 mi

Top 68%
×2stories
+19ft-37ft

Overall

18138

Males

11544

M40-44

11544

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

18929

Males

11816

M40-44

11816

25K→30K

15.5 - 18.6 mi

Top 69%
×9stories
+181ft-148ft

Overall

18478

Males

11551

M40-44

11551

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

17999

Males

11234

M40-44

11234

20M→21M

20.0 - 21.0 mi

Top 63%
×8stories
+106ft-24ft

Overall

16836

Males

10724

M40-44

10724

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

18448

Males

11349

M40-44

11349

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

18342

Males

11282

M40-44

11282

23M→24M

23.0 - 24.0 mi

Top 70%
×6stories
+12ft-82ft

Overall

18506

Males

11312

M40-44

11312

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

18237

Males

11148

M40-44

11148

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

17561

Males

10818

M40-44

10818

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2stories
+22ft-21ft

Overall

18787

Males

11439

M40-44

11439

Passing Analysis

Category:
Athletes Passed
930
Passed By
3713
Net Change
-2783
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15456
5K → 10K621064-1002#15456#16458
10K → 15K37736-699#16458#17157
15K → 20K33953-920#17157#18077
20K → Half2725+2#18077#18075
Half → 25K85237-152#18075#18227
25K → 30K171210-39#18227#18266
30K → 20M9471+23#18266#18243
20M → 21M15855+103#18243#18140
21M → 35K3966-27#18140#18167
35K → 23M7182-11#18167#18178
23M → 24M4274-32#18178#18210
24M → 40K4856-8#18210#18218
40K → 25.2M2522+3#18218#18215
25.2M → Finish3862-24#18215#18239
TOTALS9303713-2783
📊

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