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BOSTON MARATHON 2023

Meagan O'Brien

Bib: 27126•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
10:55/mi
33:56
↑ 97↓ 3451.5%
10K· 6.21 mi
10:35/mi
1:06:49
↑ 79↓ 1380.4%
15K· 9.32 mi
10:42/mi
1:40:05
↑ 67↓ 78
20K· 12.43 mi
10:23/mi
2:12:22
↑ 106↓ 860.1%
Half· 13.11 mi
10:08/mi
2:19:17
↑ 19↓ 370.5%
25K· 15.53 mi
10:42/mi
2:45:14
↑ 66↓ 880.2%
30K· 18.64 mi
11:11/mi
3:20:00
↑ 181↓ 1480.2%
20M
11:49/mi
3:36:04
↑ 64↓ 500.2%
21M
13:38/mi
3:49:42
↑ 106↓ 241.6%
35K· 21.75 mi
10:35/mi
3:57:37
↑ 17↓ 861.7%
23M
11:16/mi
4:11:44
↑ 23↓ 630.6%
24M
11:06/mi
4:22:50
↓ 821.3%
40K· 24.85 mi
10:05/mi
4:31:27
↓ 200.3%
25.2M
13:52/mi
4:36:14
↑ 13↓ 160.2%
Finish· 26.22 mi
9:48/mi
4:46:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:19:17
Pace10:37 /mi
2nd Half
Distance13.11 mi
Time2:26:56
Pace11:13 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:1933:5610:5533:56
10:55
-
10K
6.21 mi12:26:121:06:4910:4532:53
10:35
-0:20
15K
9.32 mi12:59:281:40:0510:4433:16
10:42
+0:07
20K
12.43 mi13:31:452:12:2210:3932:17
10:23
-0:19
Half
13.11 mi13:38:402:19:1710:376:55
10:08
-0:15
25K
15.53 mi14:04:372:45:1410:3825:57
10:42
+0:34
30K
18.64 mi14:39:233:20:0010:4434:46
11:11
+0:29
20M
20.00 mi14:55:273:36:0410:4816:04
11:49
+0:38
21M
21.00 mi15:09:053:49:4210:5613:38
13:38
+1:49
35K
21.75 mi15:17:003:57:3710:567:55
10:35
-3:03
23M
23.00 mi15:31:074:11:4410:5714:07
11:16
+0:41
24M
24.00 mi15:42:134:22:5010:5711:06
11:06
-0:10
40K
24.85 mi15:50:504:31:2710:558:37
10:05
-1:01
25.2M
25.20 mi15:55:374:36:1410:584:47
13:52
+3:47
Finish
26.22 mi16:05:364:46:1310:559:59
9:48
-4:04

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

9:48 /mi

Average Pace

10:55 /mi

Slowest Pace

13:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

18:36

6% of race

Time at Steady Pace

3:53:08

81% of race

Time at Slower Pace

34:29

12% of race

Average Pace: 10:55 /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 mi11:53:1933:5610:5533:56
10:55
#25568
10K
6.21 mi12:26:121:06:4910:4532:53
10:35
#25180
15K
9.32 mi12:59:281:40:0510:4433:16
10:42
#25053
20K
12.43 mi13:31:452:12:2210:3932:17
10:23
#24685
Half
13.11 mi13:38:402:19:1710:376:55
10:08
#24633
25K
15.53 mi14:04:372:45:1410:3825:57
10:42
#24428
30K
18.64 mi14:39:233:20:0010:4434:46
11:11
#24221
20M
20.00 mi14:55:273:36:0410:4816:04
11:49
#24204
21M
21.00 mi15:09:053:49:4210:5613:38
13:38
#24245
35K
21.75 mi15:17:003:57:3710:567:55
10:35
#24202
23M
23.00 mi15:31:074:11:4410:5714:07
11:16
#24142
24M
24.00 mi15:42:134:22:5010:5711:06
11:06
#24107
40K
24.85 mi15:50:504:31:2710:558:37
10:05
#23999
25.2M
25.20 mi15:55:374:36:1410:584:47
13:52
#24023
Finish
26.22 mi16:05:364:46:1310:559:59
9:48
#23950
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25568107661076624811(Top 93%)10357(Top 91%)10357(Top 212%)
10K6.21 mi3.10 mi25180+38810531+23510531+23524825(Top 93%)10339(Top 91%)10339(Top 212%)
15K9.32 mi3.11 mi25053+12710465+6610465+6624811(Top 93%)10357(Top 91%)10357(Top 212%)
20K12.43 mi3.11 mi24685+36810283+18210283+18223648(Top 89%)9714(Top 85%)9714(Top 199%)
Half13.11 mi0.68 mi24633+5210255+2810255+2823573(Top 89%)9669(Top 85%)9669(Top 198%)
25K15.53 mi2.42 mi24428+20510148+10710148+10723524(Top 88%)9686(Top 85%)9686(Top 198%)
30K18.64 mi3.11 mi24221+20710057+9110057+9123402(Top 88%)9679(Top 85%)9679(Top 198%)
20M20.00 mi1.36 mi24204+1710056+110056+123980(Top 90%)10072(Top 88%)10072(Top 206%)
21M21.00 mi1.00 mi24245-4110083-2710083-2724714(Top 93%)10461(Top 92%)10461(Top 214%)
35K21.75 mi0.75 mi24202+4310068+1510068+1522552(Top 85%)9355(Top 82%)9355(Top 192%)
23M23.00 mi1.25 mi24142+6010043+2510043+2522859(Top 86%)9517(Top 83%)9517(Top 195%)
24M24.00 mi1.00 mi24107+3510028+1510028+1523248(Top 87%)9768(Top 86%)9768(Top 200%)
40K24.85 mi0.85 mi23999+1089971+579971+5720208(Top 76%)8177(Top 72%)8177(Top 167%)
25.2M25.20 mi0.35 mi24023-249987-169987-1624907(Top 94%)10644(Top 93%)10644(Top 218%)
Finish26.22 mi1.02 mi23950+739956+319956+3121172(Top 80%)8654(Top 76%)8654(Top 177%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21story building
+97ft-345ft

Overall

24811

Females

10357

F18-39

10357

5K→10K

3.1 - 6.2 mi

Top 93%
×5story building
+79ft-138ft

Overall

24825

Females

10339

F18-39

10339

10K→15K

6.2 - 9.3 mi

Top 93%
×3story building
+67ft-78ft

Overall

24811

Females

10357

F18-39

10357

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

23648

Females

9714

F18-39

9714

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

23573

Females

9669

F18-39

9669

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

23524

Females

9686

F18-39

9686

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

23402

Females

9679

F18-39

9679

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

23980

Females

10072

F18-39

10072

20M→21M

20.0 - 21.0 mi

Top 93%
×8story building
+106ft-24ft

Overall

24714

Females

10461

F18-39

10461

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

22552

Females

9355

F18-39

9355

35K→23M

21.8 - 23.0 mi

Top 86%
×5story building
+23ft-63ft

Overall

22859

Females

9517

F18-39

9517

23M→24M

23.0 - 24.0 mi

Top 87%
×6story building
+12ft-82ft

Overall

23248

Females

9768

F18-39

9768

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

20208

Females

8177

F18-39

8177

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

24907

Females

10644

F18-39

10644

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

21172

Females

8654

F18-39

8654

Passing Analysis

Category:
Athletes Passed
1930
Passed By
312
Net Change
+1618
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25568
5K → 10K41931+388#25568#25180
10K → 15K18154+127#25180#25053
15K → 20K3779+368#25053#24685
20K → Half531+52#24685#24633
Half → 25K21712+205#24633#24428
25K → 30K24033+207#24428#24221
30K → 20M6346+17#24221#24204
20M → 21M2465-41#24204#24245
21M → 35K485+43#24245#24202
35K → 23M7515+60#24202#24142
23M → 24M4712+35#24142#24107
24M → 40K1091+108#24107#23999
40K → 25.2M327-24#23999#24023
25.2M → Finish741+73#24023#23950
TOTALS1930312+1618
📊

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