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BOSTON MARATHON 2023

Darrel Dorsey

Bib: 4389•M

MD

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 27%
Gender (Male)
#0 / 15176
Top 41%
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
22:54
Rank: #8585
Start → 5K
22:54 | 7:22/mi
10K· 6.21 mi
45:47
Rank: #8940 (-355)
5K → 10K
22:53 | 7:22/mi
15K· 9.32 mi
1:08:42
Rank: #8977 (-37)
10K → 15K
22:55 | 7:23/mi
20K· 12.43 mi
1:32:22
Rank: #9260 (-283)
15K → 20K
23:40 | 7:37/mi
Half· 13.11 mi
1:37:20
Rank: #9204 (+56)
20K → Half
4:58 | 7:17/mi
25K· 15.53 mi
1:55:15
Rank: #8963 (+241)
Half → 25K
17:55 | 7:23/mi
30K· 18.64 mi
2:18:26
Rank: #8571 (+392)
25K → 30K
23:11 | 7:28/mi
20M
2:28:35
Rank: #8383 (+188)
30K → 20M
10:09 | 7:28/mi
21M
2:36:36
Rank: #8317 (+66)
20M → 21M
8:01 | 8:01/mi
35K· 21.75 mi
2:41:53
Rank: #8195 (+122)
21M → 35K
5:17 | 7:04/mi
23M
2:50:58
Rank: #7942 (+253)
35K → 23M
9:05 | 7:15/mi
24M
2:58:03
Rank: #7774 (+168)
23M → 24M
7:05 | 7:05/mi
40K· 24.85 mi
3:04:07
Rank: #7595 (+179)
24M → 40K
6:04 | 7:06/mi
25.2M
3:06:36
Rank: #7493 (+102)
40K → 25.2M
2:29 | 7:12/mi
Finish· 26.22 mi
3:13:22
Rank: #7270 (+223)
25.2M → Finish
6:46 | 6:38/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:37:20
Pace7:25 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:36:02
Pace7:20 /mi
📊Negative Split: 1.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:3022:547:2222:54
7:22
-
10K
6.21 mi10:48:2345:477:2222:53
7:22
0:00
15K
9.32 mi11:11:181:08:427:2222:55
7:23
+0:01
20K
12.43 mi11:34:581:32:227:2623:40
7:37
+0:14
Half
13.11 mi11:39:561:37:207:254:58
7:17
-0:20
25K
15.53 mi11:57:511:55:157:2517:55
7:23
+0:06
30K
18.64 mi12:21:022:18:267:2623:11
7:28
+0:05
20M
20.00 mi12:31:112:28:357:2610:09
7:28
0:00
21M
21.00 mi12:39:122:36:367:278:01
8:01
+0:33
35K
21.75 mi12:44:292:41:537:275:17
7:04
-0:57
23M
23.00 mi12:53:342:50:587:269:05
7:15
+0:11
24M
24.00 mi13:00:392:58:037:257:05
7:05
-0:10
40K
24.85 mi13:06:433:04:077:246:04
7:06
+0:01
25.2M
25.20 mi13:09:123:06:367:242:29
7:12
+0:06
Finish
26.22 mi13:15:583:13:227:236:46
6:38
-0:34

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

6:38 /mi

Average Pace

7:23 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

27:41

14% of race

Time at Steady Pace

2:14:00

69% of race

Time at Slower Pace

31:41

16% of race

Average Pace: 7:22 /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 mi10:25:3022:547:2222:54
7:22
#8585
10K
6.21 mi10:48:2345:477:2222:53
7:22
#8940
15K
9.32 mi11:11:181:08:427:2222:55
7:23
#8977
20K
12.43 mi11:34:581:32:227:2623:40
7:37
#9260
Half
13.11 mi11:39:561:37:207:254:58
7:17
#9204
25K
15.53 mi11:57:511:55:157:2517:55
7:23
#8963
30K
18.64 mi12:21:022:18:267:2623:11
7:28
#8571
20M
20.00 mi12:31:112:28:357:2610:09
7:28
#8383
21M
21.00 mi12:39:122:36:367:278:01
8:01
#8317
35K
21.75 mi12:44:292:41:537:275:17
7:04
#8195
23M
23.00 mi12:53:342:50:587:269:05
7:15
#7942
24M
24.00 mi13:00:392:58:037:257:05
7:05
#7774
40K
24.85 mi13:06:433:04:077:246:04
7:06
#7595
25.2M
25.20 mi13:09:123:06:367:242:29
7:12
#7493
Finish
26.22 mi13:15:583:13:227:236:46
6:38
#7270
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi8585734573459122(Top 34%)7612(Top 50%)7612(Top 144%)
10K6.21 mi3.10 mi8940-3557539-1947539-1949335(Top 35%)7759(Top 51%)7759(Top 147%)
15K9.32 mi3.11 mi8977-377547-87547-89122(Top 34%)7612(Top 50%)7612(Top 144%)
20K12.43 mi3.11 mi9260-2837703-1567703-15610198(Top 38%)8177(Top 54%)8177(Top 155%)
Half13.11 mi0.68 mi9204+567671+327671+328371(Top 31%)7110(Top 47%)7110(Top 135%)
25K15.53 mi2.42 mi8963+2417520+1517520+1517918(Top 30%)6747(Top 44%)6747(Top 128%)
30K18.64 mi3.11 mi8571+3927237+2837237+2836972(Top 26%)6046(Top 40%)6046(Top 114%)
20M20.00 mi1.36 mi8383+1887091+1467091+1466589(Top 25%)5708(Top 38%)5708(Top 108%)
21M21.00 mi1.00 mi8317+667032+597032+597430(Top 28%)6134(Top 40%)6134(Top 116%)
35K21.75 mi0.75 mi8195+1226947+856947+855703(Top 21%)5034(Top 33%)5034(Top 95%)
23M23.00 mi1.25 mi7942+2536766+1816766+1815082(Top 19%)4531(Top 30%)4531(Top 86%)
24M24.00 mi1.00 mi7774+1686637+1296637+1295118(Top 19%)4518(Top 30%)4518(Top 85%)
40K24.85 mi0.85 mi7595+1796512+1256512+1254373(Top 16%)3889(Top 26%)3889(Top 74%)
25.2M25.20 mi0.35 mi7493+1026429+836429+832592(Top 10%)2405(Top 16%)2405(Top 46%)
Finish26.22 mi1.02 mi7270+2236256+1736256+1733225(Top 12%)2902(Top 19%)2902(Top 55%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21stories
+97ft-345ft

Overall

9122

Males

7612

M18-39

7612

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

9335

Males

7759

M18-39

7759

10K→15K

6.2 - 9.3 mi

Top 34%
×3stories
+67ft-78ft

Overall

9122

Males

7612

M18-39

7612

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10198

Males

8177

M18-39

8177

20K→Half

12.4 - 13.1 mi

Top 31%
×2stories
+19ft-37ft

Overall

8371

Males

7110

M18-39

7110

Half→25K

13.1 - 15.5 mi

Top 30%
×4stories
+66ft-88ft

Overall

7918

Males

6747

M18-39

6747

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

6972

Males

6046

M18-39

6046

30K→20M

18.6 - 20.0 mi

Top 25%
×5stories
+64ft-50ft

Overall

6589

Males

5708

M18-39

5708

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7430

Males

6134

M18-39

6134

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

5703

Males

5034

M18-39

5034

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5082

Males

4531

M18-39

4531

23M→24M

23.0 - 24.0 mi

Top 19%
×6stories
+12ft-82ft

Overall

5118

Males

4518

M18-39

4518

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4373

Males

3889

M18-39

3889

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2592

Males

2405

M18-39

2405

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3225

Males

2902

M18-39

2902

Passing Analysis

Category:
Athletes Passed
2406
Passed By
1091
Net Change
+1315
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8585
5K → 10K128483-355#8585#8940
10K → 15K126163-37#8940#8977
15K → 20K59342-283#8977#9260
20K → Half648+56#9260#9204
Half → 25K25312+241#9204#8963
25K → 30K40816+392#8963#8571
30K → 20M20416+188#8571#8383
20M → 21M9832+66#8383#8317
21M → 35K1242+122#8317#8195
35K → 23M2552+253#8195#7942
23M → 24M1779+168#7942#7774
24M → 40K1823+179#7774#7595
40K → 25.2M1020+102#7595#7493
25.2M → Finish2263+223#7493#7270
TOTALS24061091+1315
📊

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