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BOSTON MARATHON 2024

Brent Shirley

Bib: 3597•M

OR

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0:00
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Division (M18-39)
#0 / 4849
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:02
Rank: #7619
Start → 5K
22:02 | 7:06/mi
10K· 6.21 mi
47:27
Rank: #11537 (-3918)
5K → 10K
25:25 | 8:11/mi
15K· 9.32 mi
1:14:36
Rank: #14081 (-2544)
10K → 15K
27:09 | 8:44/mi
20K· 12.43 mi
1:42:34
Rank: #15043 (-962)
15K → 20K
27:58 | 9:00/mi
Half· 13.11 mi
1:48:19
Rank: #15056 (-13)
20K → Half
5:45 | 8:26/mi
25K· 15.53 mi
2:10:43
Rank: #15288 (-232)
Half → 25K
22:24 | 9:14/mi
30K· 18.64 mi
2:39:33
Rank: #15144 (+144)
25K → 30K
28:50 | 9:17/mi
20M
2:54:20
Rank: #15579 (-435)
30K → 20M
14:47 | 10:53/mi
21M
3:04:47
Rank: #15525 (+54)
20M → 21M
10:27 | 10:27/mi
35K· 21.75 mi
3:12:03
Rank: #15582 (-57)
21M → 35K
7:16 | 9:43/mi
23M
3:25:31
Rank: #15797 (-215)
35K → 23M
13:28 | 10:45/mi
24M
3:35:39
Rank: #15856 (-59)
23M → 24M
10:08 | 10:08/mi
40K· 24.85 mi
3:44:36
Rank: #15861 (-5)
24M → 40K
8:57 | 10:28/mi
25.2M
3:47:58
Rank: #15755 (+106)
40K → 25.2M
3:22 | 9:46/mi
Finish· 26.22 mi
3:56:34
Rank: #15581 (+174)
25.2M → Finish
8:36 | 8:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:19
Pace8:16 /mi
2nd Half
Distance13.11 mi
Time2:08:15
Pace9:47 /mi
📊Positive Split: 18.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:5422:027:0622:02
7:06
-
10K
6.21 mi10:53:1947:277:3825:25
8:11
+1:05
15K
9.32 mi11:20:281:14:368:0027:09
8:44
+0:33
20K
12.43 mi11:48:261:42:348:1527:58
9:00
+0:16
Half
13.11 mi11:54:111:48:198:165:45
8:26
-0:34
25K
15.53 mi12:16:352:10:438:2522:24
9:14
+0:48
30K
18.64 mi12:45:252:39:338:3428:50
9:17
+0:03
20M
20.00 mi13:00:122:54:208:4314:47
10:53
+1:36
21M
21.00 mi13:10:393:04:478:4810:27
10:27
-0:26
35K
21.75 mi13:17:553:12:038:507:16
9:43
-0:44
23M
23.00 mi13:31:233:25:318:5613:28
10:45
+1:02
24M
24.00 mi13:41:313:35:398:5910:08
10:08
-0:37
40K
24.85 mi13:50:283:44:369:028:57
10:28
+0:20
25.2M
25.20 mi13:53:503:47:589:033:22
9:46
-0:42
Finish
26.22 mi14:02:263:56:349:028:36
8:26
-1:20

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

7:06 /mi

Average Pace

9:02 /mi

Slowest Pace

10:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:57

38% of race

Time at Steady Pace

1:29:50

38% of race

Time at Slower Pace

57:47

24% of race

Average Pace: 9:01 /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 mi10:27:5422:027:0622:02
7:06
#7619
10K
6.21 mi10:53:1947:277:3825:25
8:11
#11537
15K
9.32 mi11:20:281:14:368:0027:09
8:44
#14081
20K
12.43 mi11:48:261:42:348:1527:58
9:00
#15043
Half
13.11 mi11:54:111:48:198:165:45
8:26
#15056
25K
15.53 mi12:16:352:10:438:2522:24
9:14
#15288
30K
18.64 mi12:45:252:39:338:3428:50
9:17
#15144
20M
20.00 mi13:00:122:54:208:4314:47
10:53
#15579
21M
21.00 mi13:10:393:04:478:4810:27
10:27
#15525
35K
21.75 mi13:17:553:12:038:507:16
9:43
#15582
23M
23.00 mi13:31:233:25:318:5613:28
10:45
#15797
24M
24.00 mi13:41:313:35:398:5910:08
10:08
#15856
40K
24.85 mi13:50:283:44:369:028:57
10:28
#15861
25.2M
25.20 mi13:53:503:47:589:033:22
9:46
#15755
Finish
26.22 mi14:02:263:56:349:028:36
8:26
#15581
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi76196573657317669(Top 69%)11103(Top 76%)11103(Top 229%)
10K6.21 mi3.10 mi11537-39188610-20378610-203715400(Top 60%)10202(Top 70%)10202(Top 210%)
15K9.32 mi3.11 mi14081-25449656-10469656-104617669(Top 69%)11103(Top 76%)11103(Top 229%)
20K12.43 mi3.11 mi15043-96210038-38210038-38217324(Top 68%)10951(Top 75%)10951(Top 226%)
Half13.11 mi0.68 mi15056-1310029+910029+915285(Top 60%)10048(Top 69%)10048(Top 207%)
25K15.53 mi2.42 mi15288-23210080-5110080-5116558(Top 65%)10497(Top 72%)10497(Top 216%)
30K18.64 mi3.11 mi15144+1449942+1389942+13814537(Top 57%)9346(Top 64%)9346(Top 193%)
20M20.00 mi1.36 mi15579-43510082-14010082-14018977(Top 74%)11235(Top 77%)11235(Top 232%)
21M21.00 mi1.00 mi15525+5410013+6910013+6914657(Top 57%)8977(Top 62%)8977(Top 185%)
35K21.75 mi0.75 mi15582-5710008+510008+516221(Top 63%)9721(Top 67%)9721(Top 200%)
23M23.00 mi1.25 mi15797-21510064-5610064-5617707(Top 69%)10394(Top 71%)10394(Top 214%)
24M24.00 mi1.00 mi15856-5910060+410060+416742(Top 66%)9891(Top 68%)9891(Top 204%)
40K24.85 mi0.85 mi15861-510030+3010030+3016586(Top 65%)9748(Top 67%)9748(Top 201%)
25.2M25.20 mi0.35 mi15755+1069967+639967+639916(Top 39%)6326(Top 43%)6326(Top 130%)
Finish26.22 mi1.02 mi15581+1749860+1079860+10711183(Top 44%)7098(Top 49%)7098(Top 146%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

17669

Males

11103

M18-39

11103

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

15400

Males

10202

M18-39

10202

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

17669

Males

11103

M18-39

11103

15K→20K

9.3 - 12.4 mi

Top 68%
×5stories
+106ft-86ft

Overall

17324

Males

10951

M18-39

10951

20K→Half

12.4 - 13.1 mi

Top 60%
×2stories
+19ft-37ft

Overall

15285

Males

10048

M18-39

10048

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

16558

Males

10497

M18-39

10497

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

14537

Males

9346

M18-39

9346

30K→20M

18.6 - 20.0 mi

Top 74%
×5stories
+64ft-50ft

Overall

18977

Males

11235

M18-39

11235

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

14657

Males

8977

M18-39

8977

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

16221

Males

9721

M18-39

9721

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

17707

Males

10394

M18-39

10394

23M→24M

23.0 - 24.0 mi

Top 66%
×6stories
+12ft-82ft

Overall

16742

Males

9891

M18-39

9891

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

16586

Males

9748

M18-39

9748

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

9916

Males

6326

M18-39

6326

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

11183

Males

7098

M18-39

7098

Passing Analysis

Category:
Athletes Passed
1331
Passed By
9291
Net Change
-7962
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7619
5K → 10K63922-3918#7619#11537
10K → 15K102554-2544#11537#14081
15K → 20K651027-962#14081#15043
20K → Half2639-13#15043#15056
Half → 25K150382-232#15056#15288
25K → 30K331187+144#15288#15144
30K → 20M37472-435#15144#15579
20M → 21M14591+54#15579#15525
21M → 35K61118-57#15525#15582
35K → 23M69284-215#15582#15797
23M → 24M52111-59#15797#15856
24M → 40K8792-5#15856#15861
40K → 25.2M1093+106#15861#15755
25.2M → Finish1839+174#15755#15581
TOTALS13319291-7962
📊

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