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BOSTON MARATHON 2023

Stephanie O'Leary

Bib: 24850•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
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
11:45/mi
36:30
↑ 97↓ 3451.5%
10K· 6.21 mi
12:16/mi
1:14:37
↑ 79↓ 1380.4%
15K· 9.32 mi
12:33/mi
1:53:35
↑ 67↓ 78
20K· 12.43 mi
13:25/mi
2:35:17
↑ 106↓ 860.1%
Half· 13.11 mi
12:13/mi
2:43:37
↑ 19↓ 370.5%
25K· 15.53 mi
13:41/mi
3:16:48
↑ 66↓ 880.2%
30K· 18.64 mi
12:51/mi
3:56:44
↑ 181↓ 1480.2%
20M
14:15/mi
4:16:06
↑ 64↓ 500.2%
21M
16:25/mi
4:32:31
↑ 106↓ 241.6%
35K· 21.75 mi
12:38/mi
4:41:58
↑ 17↓ 861.7%
23M
13:20/mi
4:58:40
↑ 23↓ 630.6%
24M
15:08/mi
5:13:48
↓ 821.3%
40K· 24.85 mi
14:47/mi
5:26:26
↓ 200.3%
25.2M
17:56/mi
5:32:37
↑ 13↓ 160.2%
Finish· 26.22 mi
12:46/mi
5:45:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:43:37
Pace12:29 /mi
2nd Half
Distance13.11 mi
Time3:02:01
Pace13:53 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:3436:3011:4536:30
11:45
-
10K
6.21 mi12:36:411:14:3712:0138:07
12:16
+0:31
15K
9.32 mi13:15:391:53:3512:1138:58
12:33
+0:17
20K
12.43 mi13:57:212:35:1712:3041:42
13:25
+0:52
Half
13.11 mi14:05:412:43:3712:298:20
12:13
-1:12
25K
15.53 mi14:38:523:16:4812:4033:11
13:41
+1:28
30K
18.64 mi15:18:483:56:4412:4239:56
12:51
-0:50
20M
20.00 mi15:38:104:16:0612:4819:22
14:15
+1:24
21M
21.00 mi15:54:354:32:3112:5916:25
16:25
+2:10
35K
21.75 mi16:04:024:41:5812:589:27
12:38
-3:47
23M
23.00 mi16:20:444:58:4012:5916:42
13:20
+0:42
24M
24.00 mi16:35:525:13:4813:0515:08
15:08
+1:48
40K
24.85 mi16:48:305:26:2613:0812:38
14:47
-0:21
25.2M
25.20 mi16:54:415:32:3713:126:11
17:56
+3:09
Finish
26.22 mi17:07:425:45:3813:1213:01
12:46
-5:10

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

11:45 /mi

Average Pace

13:12 /mi

Slowest Pace

17:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:22:57

24% of race

Time at Steady Pace

3:12:57

56% of race

Time at Slower Pace

1:09:44

20% of race

Average Pace: 13:11 /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 mi11:58:3436:3011:4536:30
11:45
#26350
10K
6.21 mi12:36:411:14:3712:0138:07
12:16
#26384
15K
9.32 mi13:15:391:53:3512:1138:58
12:33
#26385
20K
12.43 mi13:57:212:35:1712:3041:42
13:25
#26399
Half
13.11 mi14:05:412:43:3712:298:20
12:13
#26387
25K
15.53 mi14:38:523:16:4812:4033:11
13:41
#26374
30K
18.64 mi15:18:483:56:4412:4239:56
12:51
#26251
20M
20.00 mi15:38:104:16:0612:4819:22
14:15
#26227
21M
21.00 mi15:54:354:32:3112:5916:25
16:25
#26264
35K
21.75 mi16:04:024:41:5812:589:27
12:38
#26232
23M
23.00 mi16:20:444:58:4012:5916:42
13:20
#26201
24M
24.00 mi16:35:525:13:4813:0515:08
15:08
#26236
40K
24.85 mi16:48:305:26:2613:0812:38
14:47
#26242
25.2M
25.20 mi16:54:415:32:3713:126:11
17:56
#26268
Finish
26.22 mi17:07:425:45:3813:1213:01
12:46
#26260
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26350112621126226336(Top 99%)11261(Top 99%)11261(Top 231%)
10K6.21 mi3.10 mi26384-3411281-1911281-1926400(Top 99%)11298(Top 99%)11298(Top 231%)
15K9.32 mi3.11 mi26385-111286-511286-526336(Top 99%)11261(Top 99%)11261(Top 231%)
20K12.43 mi3.11 mi26399-1411290-411290-426404(Top 99%)11300(Top 99%)11300(Top 231%)
Half13.11 mi0.68 mi26387+1211282+811282+826012(Top 98%)11066(Top 97%)11066(Top 227%)
25K15.53 mi2.42 mi26374+1311267+1511267+1526209(Top 98%)11194(Top 98%)11194(Top 229%)
30K18.64 mi3.11 mi26251+12311197+7011197+7025297(Top 95%)10736(Top 94%)10736(Top 220%)
20M20.00 mi1.36 mi26227+2411191+611191+625984(Top 98%)11120(Top 97%)11120(Top 228%)
21M21.00 mi1.00 mi26264-3711215-2411215-2426326(Top 99%)11283(Top 99%)11283(Top 231%)
35K21.75 mi0.75 mi26232+3211203+1211203+1225306(Top 95%)10818(Top 95%)10818(Top 221%)
23M23.00 mi1.25 mi26201+3111186+1711186+1725400(Top 95%)10849(Top 95%)10849(Top 222%)
24M24.00 mi1.00 mi26236-3511209-2311209-2326418(Top 99%)11342(Top 99%)11342(Top 232%)
40K24.85 mi0.85 mi26242-611210-111210-126066(Top 98%)11208(Top 98%)11208(Top 229%)
25.2M25.20 mi0.35 mi26268-2611226-1611226-1626495(Top 100%)11377(Top 100%)11377(Top 233%)
Finish26.22 mi1.02 mi26260+811225+111225+125844(Top 97%)11096(Top 97%)11096(Top 227%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21story building
+97ft-345ft

Overall

26336

Females

11261

F18-39

11261

5K→10K

3.1 - 6.2 mi

Top 99%
×5story building
+79ft-138ft

Overall

26400

Females

11298

F18-39

11298

10K→15K

6.2 - 9.3 mi

Top 99%
×3story building
+67ft-78ft

Overall

26336

Females

11261

F18-39

11261

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

26404

Females

11300

F18-39

11300

20K→Half

12.4 - 13.1 mi

Top 98%
×2story building
+19ft-37ft

Overall

26012

Females

11066

F18-39

11066

Half→25K

13.1 - 15.5 mi

Top 98%
×4story building
+66ft-88ft

Overall

26209

Females

11194

F18-39

11194

25K→30K

15.5 - 18.6 mi

Top 95%
×9story building
+181ft-148ft

Overall

25297

Females

10736

F18-39

10736

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

25984

Females

11120

F18-39

11120

20M→21M

20.0 - 21.0 mi

Top 99%
×8story building
+106ft-24ft

Overall

26326

Females

11283

F18-39

11283

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

25306

Females

10818

F18-39

10818

35K→23M

21.8 - 23.0 mi

Top 95%
×5story building
+23ft-63ft

Overall

25400

Females

10849

F18-39

10849

23M→24M

23.0 - 24.0 mi

Top 99%
×6story building
+12ft-82ft

Overall

26418

Females

11342

F18-39

11342

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

26066

Females

11208

F18-39

11208

40K→25.2M

24.9 - 25.2 mi

Top 100%
×1story
+13ft-16ft

Overall

26495

Females

11377

F18-39

11377

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2story building
+22ft-21ft

Overall

25844

Females

11096

F18-39

11096

Passing Analysis

Category:
Athletes Passed
398
Passed By
308
Net Change
+90
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26350
5K → 10K2862-34#26350#26384
10K → 15K3132-1#26384#26385
15K → 20K2640-14#26385#26399
20K → Half164+12#26399#26387
Half → 25K3724+13#26387#26374
25K → 30K1285+123#26374#26251
30K → 20M3511+24#26251#26227
20M → 21M643-37#26227#26264
21M → 35K353+32#26264#26232
35K → 23M332+31#26232#26201
23M → 24M237-35#26201#26236
24M → 40K713-6#26236#26242
40K → 25.2M026-26#26242#26268
25.2M → Finish146+8#26268#26260
TOTALS398308+90
📊

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