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BOSTON MARATHON 2023

Abigail Shelly

Bib: 15694•F

WA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 32%
Gender (Female)
#0 / 11423
Top 13%
Division (F18-39)
#0 / 4884
Top 24%
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
7:35/mi
23:35
↑ 97↓ 3451.5%
10K· 6.21 mi
7:36/mi
47:13
↑ 79↓ 1380.4%
15K· 9.32 mi
7:35/mi
1:10:48
↑ 67↓ 78
20K· 12.43 mi
7:28/mi
1:34:01
↑ 106↓ 860.1%
Half· 13.11 mi
7:29/mi
1:39:07
↑ 19↓ 370.5%
25K· 15.53 mi
7:30/mi
1:57:19
↑ 66↓ 880.2%
30K· 18.64 mi
7:36/mi
2:20:55
↑ 181↓ 1480.2%
20M
7:44/mi
2:31:26
↑ 64↓ 500.2%
21M
7:50/mi
2:39:16
↑ 106↓ 241.6%
35K· 21.75 mi
7:24/mi
2:44:48
↑ 17↓ 861.7%
23M
7:34/mi
2:54:16
↑ 23↓ 630.6%
24M
7:25/mi
3:01:41
↓ 821.3%
40K· 24.85 mi
7:23/mi
3:08:00
↓ 200.3%
25.2M
7:53/mi
3:10:43
↑ 13↓ 160.2%
Finish· 26.22 mi
6:56/mi
3:17:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:39:07
Pace7:34 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:38:40
Pace7:32 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:3923:357:3523:35
7:35
-
10K
6.21 mi11:17:1747:137:3623:38
7:36
+0:01
15K
9.32 mi11:40:521:10:487:3623:35
7:35
-0:01
20K
12.43 mi12:04:051:34:017:3423:13
7:28
-0:07
Half
13.11 mi12:09:111:39:077:345:06
7:29
+0:01
25K
15.53 mi12:27:231:57:197:3318:12
7:30
+0:01
30K
18.64 mi12:50:592:20:557:3423:36
7:36
+0:06
20M
20.00 mi13:01:302:31:267:3410:31
7:44
+0:08
21M
21.00 mi13:09:202:39:167:357:50
7:50
+0:06
35K
21.75 mi13:14:522:44:487:355:32
7:24
-0:26
23M
23.00 mi13:24:202:54:167:359:28
7:34
+0:10
24M
24.00 mi13:31:453:01:417:347:25
7:25
-0:09
40K
24.85 mi13:38:043:08:007:346:19
7:23
-0:02
25.2M
25.20 mi13:40:473:10:437:342:43
7:53
+0:30
Finish
26.22 mi13:47:513:17:477:337:04
6:56
-0:57

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

6:56 /mi

Average Pace

7:33 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:56:43

89% of race

Time at Steady Pace

21:04

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:33 /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 mi10:53:3923:357:3523:35
7:35
#10458
10K
6.21 mi11:17:1747:137:3623:38
7:36
#10916
15K
9.32 mi11:40:521:10:487:3623:35
7:35
#10899
20K
12.43 mi12:04:051:34:017:3423:13
7:28
#10393
Half
13.11 mi12:09:111:39:077:345:06
7:29
#10380
25K
15.53 mi12:27:231:57:197:3318:12
7:30
#10064
30K
18.64 mi12:50:592:20:557:3423:36
7:36
#9656
20M
20.00 mi13:01:302:31:267:3410:31
7:44
#9535
21M
21.00 mi13:09:202:39:167:357:50
7:50
#9300
35K
21.75 mi13:14:522:44:487:355:32
7:24
#9221
23M
23.00 mi13:24:202:54:167:359:28
7:34
#9053
24M
24.00 mi13:31:453:01:417:347:25
7:25
#8947
40K
24.85 mi13:38:043:08:007:346:19
7:23
#8816
25.2M
25.20 mi13:40:473:10:437:342:43
7:53
#8736
Finish
26.22 mi13:47:513:17:477:337:04
6:56
#8549
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi104582063206310933(Top 41%)2298(Top 20%)2298(Top 47%)
10K6.21 mi3.10 mi10916-4582281-2182281-21811394(Top 43%)2547(Top 22%)2547(Top 52%)
15K9.32 mi3.11 mi10899+172279+22279+210933(Top 41%)2298(Top 20%)2298(Top 47%)
20K12.43 mi3.11 mi10393+5062017+2622017+2629112(Top 34%)1532(Top 13%)1532(Top 31%)
Half13.11 mi0.68 mi10380+132017201710053(Top 38%)1889(Top 17%)1889(Top 39%)
25K15.53 mi2.42 mi10064+3161889+1281889+1288844(Top 33%)1495(Top 13%)1495(Top 31%)
30K18.64 mi3.11 mi9656+4081743+1461743+1467932(Top 30%)1280(Top 11%)1280(Top 26%)
20M20.00 mi1.36 mi9535+1211720+231720+238449(Top 32%)1573(Top 14%)1573(Top 32%)
21M21.00 mi1.00 mi9300+2351654+661654+666374(Top 24%)912(Top 8%)912(Top 19%)
35K21.75 mi0.75 mi9221+791639+151639+157812(Top 29%)1420(Top 12%)1420(Top 29%)
23M23.00 mi1.25 mi9053+1681589+501589+506834(Top 26%)1117(Top 10%)1117(Top 23%)
24M24.00 mi1.00 mi8947+1061575+141575+147194(Top 27%)1364(Top 12%)1364(Top 28%)
40K24.85 mi0.85 mi8816+1311545+301545+306048(Top 23%)1006(Top 9%)1006(Top 21%)
25.2M25.20 mi0.35 mi8736+801523+221523+225895(Top 22%)1026(Top 9%)1026(Top 21%)
Finish26.22 mi1.02 mi8549+1871461+621461+624870(Top 18%)696(Top 6%)696(Top 14%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

10933

Females

2298

F18-39

2298

5K→10K

3.1 - 6.2 mi

Top 43%
×5story building
+79ft-138ft

Overall

11394

Females

2547

F18-39

2547

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

10933

Females

2298

F18-39

2298

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

9112

Females

1532

F18-39

1532

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10053

Females

1889

F18-39

1889

Half→25K

13.1 - 15.5 mi

Top 33%
×4story building
+66ft-88ft

Overall

8844

Females

1495

F18-39

1495

25K→30K

15.5 - 18.6 mi

Top 30%
×9story building
+181ft-148ft

Overall

7932

Females

1280

F18-39

1280

30K→20M

18.6 - 20.0 mi

Top 32%
×5story building
+64ft-50ft

Overall

8449

Females

1573

F18-39

1573

20M→21M

20.0 - 21.0 mi

Top 24%
×8story building
+106ft-24ft

Overall

6374

Females

912

F18-39

912

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

7812

Females

1420

F18-39

1420

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

6834

Females

1117

F18-39

1117

23M→24M

23.0 - 24.0 mi

Top 27%
×6story building
+12ft-82ft

Overall

7194

Females

1364

F18-39

1364

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6048

Females

1006

F18-39

1006

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

5895

Females

1026

F18-39

1026

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2story building
+22ft-21ft

Overall

4870

Females

696

F18-39

696

Passing Analysis

Category:
Athletes Passed
2822*
Passed By
913
Net Change
+1909
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10458
5K → 10K128586-458#10458#10916
10K → 15K188171+17#10916#10899
15K → 20K51711+506#10899#10393
20K → Half3522+13#10393#10380
Half → 25K33418+316#10380#10064
25K → 30K427*19+408#10064#9656
30K → 20M14625+121#9656#9535
20M → 21M2372+235#9535#9300
21M → 35K9213+79#9300#9221
35K → 23M17911+168#9221#9053
23M → 24M13125+106#9053#8947
24M → 40K1365+131#8947#8816
40K → 25.2M800+80#8816#8736
25.2M → Finish1925+187#8736#8549
TOTALS2822*913+1909

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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