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BOSTON MARATHON 2023

Mason Darrow

Bib: 27092•M

NY

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
32:38
Rank: #24712
Start → 5K
32:38 | 10:30/mi
10K· 6.21 mi
1:03:56
Rank: #24239 (+473)
5K → 10K
31:18 | 10:04/mi
15K· 9.32 mi
1:35:00
Rank: #23986 (+253)
10K → 15K
31:04 | 10:00/mi
20K· 12.43 mi
2:05:27
Rank: #23626 (+360)
15K → 20K
30:27 | 9:48/mi
Half· 13.11 mi
2:11:59
Rank: #23559 (+67)
20K → Half
6:32 | 9:35/mi
25K· 15.53 mi
2:36:12
Rank: #23331 (+228)
Half → 25K
24:13 | 9:59/mi
30K· 18.64 mi
3:07:54
Rank: #22984 (+347)
25K → 30K
31:42 | 10:12/mi
20M
3:21:40
Rank: #22811 (+173)
30K → 20M
13:46 | 10:08/mi
21M
3:31:51
Rank: #22638 (+173)
20M → 21M
10:11 | 10:11/mi
35K· 21.75 mi
3:38:58
Rank: #22529 (+109)
21M → 35K
7:07 | 9:31/mi
23M
3:51:01
Rank: #22350 (+179)
35K → 23M
12:03 | 9:37/mi
24M
4:00:31
Rank: #22240 (+110)
23M → 24M
9:30 | 9:30/mi
40K· 24.85 mi
4:08:31
Rank: #22105 (+135)
24M → 40K
8:00 | 9:21/mi
25.2M
4:11:51
Rank: #22031 (+74)
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
4:20:10
Rank: #21852 (+179)
25.2M → Finish
8:19 | 8:10/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:11:59
Pace10:04 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:08:11
Pace9:47 /mi
📊Negative Split: 2.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:0732:3810:3032:38
10:30
-
10K
6.21 mi12:21:251:03:5610:1731:18
10:04
-0:26
15K
9.32 mi12:52:291:35:0010:1231:04
10:00
-0:04
20K
12.43 mi13:22:562:05:2710:0630:27
9:48
-0:12
Half
13.11 mi13:29:282:11:5910:046:32
9:35
-0:13
25K
15.53 mi13:53:412:36:1210:0324:13
9:59
+0:24
30K
18.64 mi14:25:233:07:5410:0531:42
10:12
+0:13
20M
20.00 mi14:39:093:21:4010:0513:46
10:08
-0:04
21M
21.00 mi14:49:203:31:5110:0510:11
10:11
+0:03
35K
21.75 mi14:56:273:38:5810:047:07
9:31
-0:40
23M
23.00 mi15:08:303:51:0110:0312:03
9:37
+0:06
24M
24.00 mi15:18:004:00:3110:019:30
9:30
-0:07
40K
24.85 mi15:26:004:08:3110:008:00
9:21
-0:09
25.2M
25.20 mi15:29:204:11:5110:003:20
9:40
+0:19
Finish
26.22 mi15:37:394:20:109:568:19
8:10
-1:30

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

8:10 /mi

Average Pace

9:56 /mi

Slowest Pace

10:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

32:56

13% of race

Time at Steady Pace

1:47:39

41% of race

Time at Slower Pace

1:59:35

46% of race

Average Pace: 9:55 /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 mi11:50:0732:3810:3032:38
10:30
#24712
10K
6.21 mi12:21:251:03:5610:1731:18
10:04
#24239
15K
9.32 mi12:52:291:35:0010:1231:04
10:00
#23986
20K
12.43 mi13:22:562:05:2710:0630:27
9:48
#23626
Half
13.11 mi13:29:282:11:5910:046:32
9:35
#23559
25K
15.53 mi13:53:412:36:1210:0324:13
9:59
#23331
30K
18.64 mi14:25:233:07:5410:0531:42
10:12
#22984
20M
20.00 mi14:39:093:21:4010:0513:46
10:08
#22811
21M
21.00 mi14:49:203:31:5110:0510:11
10:11
#22638
35K
21.75 mi14:56:273:38:5810:047:07
9:31
#22529
23M
23.00 mi15:08:303:51:0110:0312:03
9:37
#22350
24M
24.00 mi15:18:004:00:3110:019:30
9:30
#22240
40K
24.85 mi15:26:004:08:3110:008:00
9:21
#22105
25.2M
25.20 mi15:29:204:11:5110:003:20
9:40
#22031
Finish
26.22 mi15:37:394:20:109:568:19
8:10
#21852
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi24712144101441023498(Top 88%)13866(Top 91%)13866(Top 262%)
10K6.21 mi3.10 mi24239+47314198+21214198+21223845(Top 90%)14016(Top 92%)14016(Top 265%)
15K9.32 mi3.11 mi23986+25314083+11514083+11523498(Top 88%)13866(Top 91%)13866(Top 262%)
20K12.43 mi3.11 mi23626+36013924+15913924+15922403(Top 84%)13356(Top 88%)13356(Top 253%)
Half13.11 mi0.68 mi23559+6713898+2613898+2622308(Top 84%)13329(Top 88%)13329(Top 252%)
25K15.53 mi2.42 mi23331+22813781+11713781+11722187(Top 83%)13225(Top 87%)13225(Top 250%)
30K18.64 mi3.11 mi22984+34713588+19313588+19321531(Top 81%)12864(Top 85%)12864(Top 243%)
20M20.00 mi1.36 mi22811+17313494+9413494+9420824(Top 78%)12491(Top 82%)12491(Top 236%)
21M21.00 mi1.00 mi22638+17313397+9713397+9718655(Top 70%)11501(Top 76%)11501(Top 218%)
35K21.75 mi0.75 mi22529+10913350+4713350+4719888(Top 75%)12009(Top 79%)12009(Top 227%)
23M23.00 mi1.25 mi22350+17913261+8913261+8918826(Top 71%)11505(Top 76%)11505(Top 218%)
24M24.00 mi1.00 mi22240+11013205+5613205+5619202(Top 72%)11623(Top 77%)11623(Top 220%)
40K24.85 mi0.85 mi22105+13513136+6913136+6917779(Top 67%)10938(Top 72%)10938(Top 207%)
25.2M25.20 mi0.35 mi22031+7413102+3413102+3415951(Top 60%)10115(Top 67%)10115(Top 191%)
Finish26.22 mi1.02 mi21852+17913001+10113001+10113178(Top 50%)8874(Top 58%)8874(Top 168%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21stories
+97ft-345ft

Overall

23498

Males

13866

M18-39

13866

5K→10K

3.1 - 6.2 mi

Top 90%
×5stories
+79ft-138ft

Overall

23845

Males

14016

M18-39

14016

10K→15K

6.2 - 9.3 mi

Top 88%
×3stories
+67ft-78ft

Overall

23498

Males

13866

M18-39

13866

15K→20K

9.3 - 12.4 mi

Top 84%
×5stories
+106ft-86ft

Overall

22403

Males

13356

M18-39

13356

20K→Half

12.4 - 13.1 mi

Top 84%
×2stories
+19ft-37ft

Overall

22308

Males

13329

M18-39

13329

Half→25K

13.1 - 15.5 mi

Top 83%
×4stories
+66ft-88ft

Overall

22187

Males

13225

M18-39

13225

25K→30K

15.5 - 18.6 mi

Top 81%
×9stories
+181ft-148ft

Overall

21531

Males

12864

M18-39

12864

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

20824

Males

12491

M18-39

12491

20M→21M

20.0 - 21.0 mi

Top 70%
×8stories
+106ft-24ft

Overall

18655

Males

11501

M18-39

11501

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

19888

Males

12009

M18-39

12009

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

18826

Males

11505

M18-39

11505

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

19202

Males

11623

M18-39

11623

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

17779

Males

10938

M18-39

10938

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

15951

Males

10115

M18-39

10115

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

13178

Males

8874

M18-39

8874

Passing Analysis

Category:
Athletes Passed
2982
Passed By
122
Net Change
+2860
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24712
5K → 10K51239+473#24712#24239
10K → 15K29239+253#24239#23986
15K → 20K3688+360#23986#23626
20K → Half714+67#23626#23559
Half → 25K2357+228#23559#23331
25K → 30K35710+347#23331#22984
30K → 20M1774+173#22984#22811
20M → 21M1752+173#22811#22638
21M → 35K1123+109#22638#22529
35K → 23M1812+179#22529#22350
23M → 24M1111+110#22350#22240
24M → 40K1372+135#22240#22105
40K → 25.2M751+74#22105#22031
25.2M → Finish1790+179#22031#21852
TOTALS2982122+2860
📊

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