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BOSTON MARATHON 2023

Shannon Coggins-Leo

Bib: 31639•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
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
8:15/mi
25:39
↑ 97↓ 3451.5%
10K· 6.21 mi
8:17/mi
51:24
↑ 79↓ 1380.4%
15K· 9.32 mi
8:27/mi
1:17:38
↑ 67↓ 78
20K· 12.43 mi
8:41/mi
1:44:38
↑ 106↓ 860.1%
Half· 13.11 mi
8:33/mi
1:50:28
↑ 19↓ 370.5%
25K· 15.53 mi
9:21/mi
2:13:07
↑ 66↓ 880.2%
30K· 18.64 mi
9:51/mi
2:43:42
↑ 181↓ 1480.2%
20M
10:12/mi
2:57:34
↑ 64↓ 500.2%
21M
12:34/mi
3:10:08
↑ 106↓ 241.6%
35K· 21.75 mi
11:30/mi
3:18:44
↑ 17↓ 861.7%
23M
10:28/mi
3:31:50
↑ 23↓ 630.6%
24M
10:34/mi
3:42:24
↓ 821.3%
40K· 24.85 mi
10:42/mi
3:51:33
↓ 200.3%
25.2M
11:56/mi
3:55:40
↑ 13↓ 160.2%
Finish· 26.22 mi
9:37/mi
4:05:28
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:28
Pace8:26 /mi
2nd Half
Distance13.11 mi
Time2:15:00
Pace10:18 /mi
📊Positive Split: 22.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:40:4825:398:1525:39
8:15
-
10K
6.21 mi12:06:3351:248:1625:45
8:17
+0:02
15K
9.32 mi12:32:471:17:388:2026:14
8:27
+0:10
20K
12.43 mi12:59:471:44:388:2527:00
8:41
+0:14
Half
13.11 mi13:05:371:50:288:265:50
8:33
-0:08
25K
15.53 mi13:28:162:13:078:3422:39
9:21
+0:48
30K
18.64 mi13:58:512:43:428:4730:35
9:51
+0:30
20M
20.00 mi14:12:432:57:348:5313:52
10:12
+0:21
21M
21.00 mi14:25:173:10:089:0312:34
12:34
+2:22
35K
21.75 mi14:33:533:18:449:088:36
11:30
-1:04
23M
23.00 mi14:46:593:31:509:1313:06
10:28
-1:02
24M
24.00 mi14:57:333:42:249:1610:34
10:34
+0:06
40K
24.85 mi15:06:423:51:339:199:09
10:42
+0:08
25.2M
25.20 mi15:10:493:55:409:214:07
11:56
+1:14
Finish
26.22 mi15:20:374:05:289:229:48
9:37
-2:19

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

8:15 /mi

Average Pace

9:22 /mi

Slowest Pace

12:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:28

45% of race

Time at Steady Pace

1:30:00

37% of race

Time at Slower Pace

45:00

18% of race

Average Pace: 9:22 /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 mi11:40:4825:398:1525:39
8:15
#15879
10K
6.21 mi12:06:3351:248:1625:45
8:17
#16318
15K
9.32 mi12:32:471:17:388:2026:14
8:27
#16724
20K
12.43 mi12:59:471:44:388:2527:00
8:41
#17069
Half
13.11 mi13:05:371:50:288:265:50
8:33
#17130
25K
15.53 mi13:28:162:13:078:3422:39
9:21
#17745
30K
18.64 mi13:58:512:43:428:4730:35
9:51
#18475
20M
20.00 mi14:12:432:57:348:5313:52
10:12
#18778
21M
21.00 mi14:25:173:10:089:0312:34
12:34
#19301
35K
21.75 mi14:33:533:18:449:088:36
11:30
#19630
23M
23.00 mi14:46:593:31:509:1313:06
10:28
#19769
24M
24.00 mi14:57:333:42:249:1610:34
10:34
#19937
40K
24.85 mi15:06:423:51:339:199:09
10:42
#20040
25.2M
25.20 mi15:10:493:55:409:214:07
11:56
#20092
Finish
26.22 mi15:20:374:05:289:229:48
9:37
#20084
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi158795204520417441(Top 66%)6184(Top 54%)6184(Top 329%)
10K6.21 mi3.10 mi16318-4395471-2675471-26716871(Top 63%)5794(Top 51%)5794(Top 309%)
15K9.32 mi3.11 mi16724-4065748-2775748-27717441(Top 66%)6184(Top 54%)6184(Top 329%)
20K12.43 mi3.11 mi17069-3455974-2265974-22618078(Top 68%)6557(Top 57%)6557(Top 349%)
Half13.11 mi0.68 mi17130-616005-316005-3118103(Top 68%)6567(Top 57%)6567(Top 350%)
25K15.53 mi2.42 mi17745-6156379-3746379-37420330(Top 76%)7887(Top 69%)7887(Top 420%)
30K18.64 mi3.11 mi18475-7306853-4746853-47420584(Top 77%)8100(Top 71%)8100(Top 431%)
20M20.00 mi1.36 mi18778-3037023-1707023-17021027(Top 79%)8423(Top 74%)8423(Top 449%)
21M21.00 mi1.00 mi19301-5237341-3187341-31823540(Top 88%)9831(Top 86%)9831(Top 523%)
35K21.75 mi0.75 mi19630-3297536-1957536-19524092(Top 90%)10171(Top 89%)10171(Top 542%)
23M23.00 mi1.25 mi19769-1397628-927628-9221232(Top 80%)8642(Top 76%)8642(Top 460%)
24M24.00 mi1.00 mi19937-1687736-1087736-10822174(Top 83%)9195(Top 80%)9195(Top 490%)
40K24.85 mi0.85 mi20040-1037806-707806-7021712(Top 82%)8992(Top 79%)8992(Top 479%)
25.2M25.20 mi0.35 mi20092-527846-407846-4022383(Top 84%)9331(Top 82%)9331(Top 497%)
Finish26.22 mi1.02 mi20084+87849-37849-320551(Top 77%)8319(Top 73%)8319(Top 443%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

17441

Females

6184

F40-44

6184

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

16871

Females

5794

F40-44

5794

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

17441

Females

6184

F40-44

6184

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

18078

Females

6557

F40-44

6557

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

18103

Females

6567

F40-44

6567

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

20330

Females

7887

F40-44

7887

25K→30K

15.5 - 18.6 mi

Top 77%
×9story building
+181ft-148ft

Overall

20584

Females

8100

F40-44

8100

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

21027

Females

8423

F40-44

8423

20M→21M

20.0 - 21.0 mi

Top 88%
×8story building
+106ft-24ft

Overall

23540

Females

9831

F40-44

9831

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

24092

Females

10171

F40-44

10171

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

21232

Females

8642

F40-44

8642

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

22174

Females

9195

F40-44

9195

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

21712

Females

8992

F40-44

8992

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

22383

Females

9331

F40-44

9331

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

20551

Females

8319

F40-44

8319

Passing Analysis

Category:
Athletes Passed
561
Passed By
4766
Net Change
-4205
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15879
5K → 10K139578-439#15879#16318
10K → 15K84490-406#16318#16724
15K → 20K87432-345#16724#17069
20K → Half1475-61#17069#17130
Half → 25K30645-615#17130#17745
25K → 30K42772-730#17745#18475
30K → 20M28331-303#18475#18778
20M → 21M6529-523#18778#19301
21M → 35K5334-329#19301#19630
35K → 23M37176-139#19630#19769
23M → 24M19187-168#19769#19937
24M → 40K21124-103#19937#20040
40K → 25.2M961-52#20040#20092
25.2M → Finish4032+8#20092#20084
TOTALS5614766-4205
📊

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