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BOSTON MARATHON 2023

William Cargill

Bib: 8506•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 34%
Gender (Male)
#0 / 15176
Top 49%
Masters (Masters Men)
#0 / 9891
Top 37%
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:03/mi
21:53
↑ 97↓ 3451.5%
10K· 6.21 mi
6:52/mi
43:13
↑ 79↓ 1380.4%
15K· 9.32 mi
7:00/mi
1:04:58
↑ 67↓ 78
20K· 12.43 mi
7:17/mi
1:27:37
↑ 106↓ 860.1%
Half· 13.11 mi
7:11/mi
1:32:31
↑ 19↓ 370.5%
25K· 15.53 mi
7:51/mi
1:51:34
↑ 66↓ 880.2%
30K· 18.64 mi
7:57/mi
2:16:17
↑ 181↓ 1480.2%
20M
8:03/mi
2:27:13
↑ 64↓ 500.2%
21M
8:44/mi
2:35:57
↑ 106↓ 241.6%
35K· 21.75 mi
8:03/mi
2:41:58
↑ 17↓ 861.7%
23M
8:29/mi
2:52:35
↑ 23↓ 630.6%
24M
8:08/mi
3:00:43
↓ 821.3%
40K· 24.85 mi
8:26/mi
3:07:56
↓ 200.3%
25.2M
9:37/mi
3:11:15
↑ 13↓ 160.2%
Finish· 26.22 mi
8:17/mi
3:19:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:31
Pace7:03 /mi
2nd Half
Distance13.11 mi
Time1:47:10
Pace8:11 /mi
📊Positive Split: 15.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:4521:537:0321:53
7:03
-
10K
6.21 mi11:09:0543:136:5721:20
6:52
-0:11
15K
9.32 mi11:30:501:04:586:5821:45
7:00
+0:08
20K
12.43 mi11:53:291:27:377:0322:39
7:17
+0:17
Half
13.11 mi11:58:231:32:317:034:54
7:11
-0:06
25K
15.53 mi12:17:261:51:347:1119:03
7:51
+0:40
30K
18.64 mi12:42:092:16:177:1924:43
7:57
+0:06
20M
20.00 mi12:53:052:27:137:2210:56
8:03
+0:06
21M
21.00 mi13:01:492:35:577:268:44
8:44
+0:41
35K
21.75 mi13:07:502:41:587:276:01
8:03
-0:41
23M
23.00 mi13:18:272:52:357:3010:37
8:29
+0:26
24M
24.00 mi13:26:353:00:437:328:08
8:08
-0:21
40K
24.85 mi13:33:483:07:567:347:13
8:26
+0:18
25.2M
25.20 mi13:37:073:11:157:353:19
9:37
+1:11
Finish
26.22 mi13:45:333:19:417:378:26
8:17
-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

6:52 /mi

Average Pace

7:37 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:31

46% of race

Time at Steady Pace

1:17:17

39% of race

Time at Slower Pace

29:53

15% of race

Average Pace: 7:37 /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 mi10:47:4521:537:0321:53
7:03
#6520
10K
6.21 mi11:09:0543:136:5721:20
6:52
#6239
15K
9.32 mi11:30:501:04:586:5821:45
7:00
#6320
20K
12.43 mi11:53:291:27:377:0322:39
7:17
#6642
Half
13.11 mi11:58:231:32:317:034:54
7:11
#6693
25K
15.53 mi12:17:261:51:347:1119:03
7:51
#7265
30K
18.64 mi12:42:092:16:177:1924:43
7:57
#7709
20M
20.00 mi12:53:052:27:137:2210:56
8:03
#7872
21M
21.00 mi13:01:492:35:577:268:44
8:44
#8082
35K
21.75 mi13:07:502:41:587:276:01
8:03
#8225
23M
23.00 mi13:18:272:52:357:3010:37
8:29
#8500
24M
24.00 mi13:26:353:00:437:328:08
8:08
#8647
40K
24.85 mi13:33:483:07:567:347:13
8:26
#8792
25.2M
25.20 mi13:37:073:11:157:353:19
9:37
#8891
Finish
26.22 mi13:45:333:19:417:378:26
8:17
#9107
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6520590459046563(Top 25%)5908(Top 39%)5908(Top 264%)
10K6.21 mi3.10 mi6239+2815671+2335671+2335892(Top 22%)5378(Top 35%)5378(Top 240%)
15K9.32 mi3.11 mi6320-815724-535724-536563(Top 25%)5908(Top 39%)5908(Top 264%)
20K12.43 mi3.11 mi6642-3225968-2445968-2447704(Top 29%)6697(Top 44%)6697(Top 299%)
Half13.11 mi0.68 mi6693-516013-456013-457742(Top 29%)6749(Top 44%)6749(Top 301%)
25K15.53 mi2.42 mi7265-5726427-4146427-41411552(Top 43%)8730(Top 58%)8730(Top 390%)
30K18.64 mi3.11 mi7709-4446695-2686695-26810530(Top 40%)8111(Top 53%)8111(Top 362%)
20M20.00 mi1.36 mi7872-1636777-826777-8210571(Top 40%)8027(Top 53%)8027(Top 358%)
21M21.00 mi1.00 mi8082-2106892-1156892-11511831(Top 44%)8492(Top 56%)8492(Top 379%)
35K21.75 mi0.75 mi8225-1436966-746966-7412368(Top 46%)8702(Top 57%)8702(Top 388%)
23M23.00 mi1.25 mi8500-2757120-1547120-15413055(Top 49%)8927(Top 59%)8927(Top 398%)
24M24.00 mi1.00 mi8647-1477186-667186-6612113(Top 45%)8439(Top 56%)8439(Top 377%)
40K24.85 mi0.85 mi8792-1457248-627248-6212932(Top 49%)8738(Top 58%)8738(Top 390%)
25.2M25.20 mi0.35 mi8891-997299-517299-5115647(Top 59%)9935(Top 65%)9935(Top 443%)
Finish26.22 mi1.02 mi9107-2167402-1037402-10313905(Top 52%)9192(Top 61%)9192(Top 410%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21story building
+97ft-345ft

Overall

6563

Males

5908

M40-44

5908

5K→10K

3.1 - 6.2 mi

Top 22%
×5story building
+79ft-138ft

Overall

5892

Males

5378

M40-44

5378

10K→15K

6.2 - 9.3 mi

Top 25%
×3story building
+67ft-78ft

Overall

6563

Males

5908

M40-44

5908

15K→20K

9.3 - 12.4 mi

Top 29%
×5story building
+106ft-86ft

Overall

7704

Males

6697

M40-44

6697

20K→Half

12.4 - 13.1 mi

Top 29%
×2story building
+19ft-37ft

Overall

7742

Males

6749

M40-44

6749

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

11552

Males

8730

M40-44

8730

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

10530

Males

8111

M40-44

8111

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

10571

Males

8027

M40-44

8027

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

11831

Males

8492

M40-44

8492

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

12368

Males

8702

M40-44

8702

35K→23M

21.8 - 23.0 mi

Top 49%
×5story building
+23ft-63ft

Overall

13055

Males

8927

M40-44

8927

23M→24M

23.0 - 24.0 mi

Top 45%
×6story building
+12ft-82ft

Overall

12113

Males

8439

M40-44

8439

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

12932

Males

8738

M40-44

8738

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

15647

Males

9935

M40-44

9935

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

13905

Males

9192

M40-44

9192

Passing Analysis

Category:
Athletes Passed
720
Passed By
3307
Net Change
-2587
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6520
5K → 10K37089+281#6520#6239
10K → 15K83164-81#6239#6320
15K → 20K36358-322#6320#6642
20K → Half556-51#6642#6693
Half → 25K9581-572#6693#7265
25K → 30K43487-444#7265#7709
30K → 20M26189-163#7709#7872
20M → 21M25235-210#7872#8082
21M → 35K16159-143#8082#8225
35K → 23M25300-275#8225#8500
23M → 24M36183-147#8500#8647
24M → 40K23168-145#8647#8792
40K → 25.2M8107-99#8792#8891
25.2M → Finish15231-216#8891#9107
TOTALS7203307-2587
📊

Passing Visuals

Category:
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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