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BOSTON MARATHON 2023

William Kirk

Bib: 3240•M

VA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 30%
Gender (Male)
#0 / 15176
Top 44%
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
20:59
Rank: #4203
Start → 5K
20:59 | 6:45/mi
10K· 6.21 mi
41:45
Rank: #4191 (+12)
5K → 10K
20:46 | 6:41/mi
15K· 9.32 mi
1:02:43
Rank: #4310 (-119)
10K → 15K
20:58 | 6:45/mi
20K· 12.43 mi
1:23:55
Rank: #4373 (-63)
15K → 20K
21:12 | 6:49/mi
Half· 13.11 mi
1:28:31
Rank: #4386 (-13)
20K → Half
4:36 | 6:45/mi
25K· 15.53 mi
1:45:36
Rank: #4681 (-295)
Half → 25K
17:05 | 7:03/mi
30K· 18.64 mi
2:08:43
Rank: #5228 (-547)
25K → 30K
23:07 | 7:26/mi
20M
2:19:25
Rank: #5489 (-261)
30K → 20M
10:42 | 7:52/mi
21M
2:27:48
Rank: #5638 (-149)
20M → 21M
8:23 | 8:23/mi
35K· 21.75 mi
2:35:05
Rank: #6153 (-515)
21M → 35K
7:17 | 9:44/mi
23M
2:48:25
Rank: #7168 (-1015)
35K → 23M
13:20 | 10:39/mi
24M
2:56:45
Rank: #7369 (-201)
23M → 24M
8:20 | 8:20/mi
40K· 24.85 mi
3:03:37
Rank: #7456 (-87)
24M → 40K
6:52 | 8:02/mi
25.2M
3:07:02
Rank: #7621 (-165)
40K → 25.2M
3:25 | 9:54/mi
Finish· 26.22 mi
3:15:40
Rank: #7920 (-299)
25.2M → Finish
8:38 | 8:28/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:31
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:47:09
Pace8:10 /mi
📊Positive Split: 21.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:0920:596:4520:59
6:45
-
10K
6.21 mi10:42:5541:456:4320:46
6:41
-0:04
15K
9.32 mi11:03:531:02:436:4420:58
6:45
+0:04
20K
12.43 mi11:25:051:23:556:4521:12
6:49
+0:04
Half
13.11 mi11:29:411:28:316:454:36
6:45
-0:04
25K
15.53 mi11:46:461:45:366:4817:05
7:03
+0:18
30K
18.64 mi12:09:532:08:436:5423:07
7:26
+0:23
20M
20.00 mi12:20:352:19:256:5810:42
7:52
+0:26
21M
21.00 mi12:28:582:27:487:028:23
8:23
+0:31
35K
21.75 mi12:36:152:35:057:087:17
9:44
+1:21
23M
23.00 mi12:49:352:48:257:1913:20
10:39
+0:55
24M
24.00 mi12:57:552:56:457:228:20
8:20
-2:19
40K
24.85 mi13:04:473:03:377:236:52
8:02
-0:18
25.2M
25.20 mi13:08:123:07:027:253:25
9:54
+1:52
Finish
26.22 mi13:16:503:15:407:288:38
8:28
-1:26

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

6:41 /mi

Average Pace

7:28 /mi

Slowest Pace

10:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:36

54% of race

Time at Steady Pace

1:06:02

34% of race

Time at Slower Pace

24:02

12% of race

Average Pace: 7:28 /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 mi10:22:0920:596:4520:59
6:45
#4203
10K
6.21 mi10:42:5541:456:4320:46
6:41
#4191
15K
9.32 mi11:03:531:02:436:4420:58
6:45
#4310
20K
12.43 mi11:25:051:23:556:4521:12
6:49
#4373
Half
13.11 mi11:29:411:28:316:454:36
6:45
#4386
25K
15.53 mi11:46:461:45:366:4817:05
7:03
#4681
30K
18.64 mi12:09:532:08:436:5423:07
7:26
#5228
20M
20.00 mi12:20:352:19:256:5810:42
7:52
#5489
21M
21.00 mi12:28:582:27:487:028:23
8:23
#5638
35K
21.75 mi12:36:152:35:057:087:17
9:44
#6153
23M
23.00 mi12:49:352:48:257:1913:20
10:39
#7168
24M
24.00 mi12:57:552:56:457:228:20
8:20
#7369
40K
24.85 mi13:04:473:03:377:236:52
8:02
#7456
25.2M
25.20 mi13:08:123:07:027:253:25
9:54
#7621
Finish
26.22 mi13:16:503:15:407:288:38
8:28
#7920
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4203393939394613(Top 17%)4309(Top 28%)4309(Top 82%)
10K6.21 mi3.10 mi4191+123929+103929+104208(Top 16%)3946(Top 26%)3946(Top 75%)
15K9.32 mi3.11 mi4310-1194037-1084037-1084613(Top 17%)4309(Top 28%)4309(Top 82%)
20K12.43 mi3.11 mi4373-634093-564093-564679(Top 18%)4357(Top 29%)4357(Top 82%)
Half13.11 mi0.68 mi4386-134106-134106-134834(Top 18%)4496(Top 30%)4496(Top 85%)
25K15.53 mi2.42 mi4681-2954360-2544360-2545831(Top 22%)5318(Top 35%)5318(Top 101%)
30K18.64 mi3.11 mi5228-5474838-4784838-4786831(Top 26%)5950(Top 39%)5950(Top 113%)
20M20.00 mi1.36 mi5489-2615049-2115049-2119355(Top 35%)7383(Top 49%)7383(Top 140%)
21M21.00 mi1.00 mi5638-1495166-1175166-1179716(Top 36%)7448(Top 49%)7448(Top 141%)
35K21.75 mi0.75 mi6153-5155550-3845550-38420540(Top 77%)12269(Top 81%)12269(Top 232%)
23M23.00 mi1.25 mi7168-10156270-7206270-72021648(Top 81%)12748(Top 84%)12748(Top 241%)
24M24.00 mi1.00 mi7369-2016382-1126382-11213385(Top 50%)9027(Top 59%)9027(Top 171%)
40K24.85 mi0.85 mi7456-876409-276409-2710214(Top 38%)7435(Top 49%)7435(Top 141%)
25.2M25.20 mi0.35 mi7621-1656518-1096518-10916918(Top 64%)10495(Top 69%)10495(Top 199%)
Finish26.22 mi1.02 mi7920-2996684-1666684-16615194(Top 57%)9800(Top 65%)9800(Top 185%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4613

Males

4309

M18-39

4309

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4208

Males

3946

M18-39

3946

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4613

Males

4309

M18-39

4309

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

4679

Males

4357

M18-39

4357

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

4834

Males

4496

M18-39

4496

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

5831

Males

5318

M18-39

5318

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

6831

Males

5950

M18-39

5950

30K→20M

18.6 - 20.0 mi

Top 35%
×5stories
+64ft-50ft

Overall

9355

Males

7383

M18-39

7383

20M→21M

20.0 - 21.0 mi

Top 36%
×8stories
+106ft-24ft

Overall

9716

Males

7448

M18-39

7448

21M→35K

21.0 - 21.8 mi

Top 77%
×7stories
+17ft-86ft

Overall

20540

Males

12269

M18-39

12269

35K→23M

21.8 - 23.0 mi

Top 81%
×5stories
+23ft-63ft

Overall

21648

Males

12748

M18-39

12748

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

13385

Males

9027

M18-39

9027

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10214

Males

7435

M18-39

7435

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

16918

Males

10495

M18-39

10495

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2stories
+22ft-21ft

Overall

15194

Males

9800

M18-39

9800

Passing Analysis

Category:
Athletes Passed
593
Passed By
4310
Net Change
-3717
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4203
5K → 10K221209+12#4203#4191
10K → 15K87206-119#4191#4310
15K → 20K81144-63#4310#4373
20K → Half1629-13#4373#4386
Half → 25K42337-295#4386#4681
25K → 30K32579-547#4681#5228
30K → 20M18279-261#5228#5489
20M → 21M20169-149#5489#5638
21M → 35K1516-515#5638#6153
35K → 23M81023-1015#6153#7168
23M → 24M15216-201#7168#7369
24M → 40K36123-87#7369#7456
40K → 25.2M4169-165#7456#7621
25.2M → Finish12311-299#7621#7920
TOTALS5934310-3717
📊

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