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BOSTON MARATHON 2023

Molly Bailey

Bib: 26332•F

NC

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
10:50/mi
33:40
↑ 97↓ 3451.5%
10K· 6.21 mi
10:44/mi
1:07:02
↑ 79↓ 1380.4%
15K· 9.32 mi
10:35/mi
1:39:56
↑ 67↓ 78
20K· 12.43 mi
10:42/mi
2:13:12
↑ 106↓ 860.1%
Half· 13.11 mi
10:38/mi
2:20:27
↑ 19↓ 370.5%
25K· 15.53 mi
10:48/mi
2:46:39
↑ 66↓ 880.2%
30K· 18.64 mi
11:08/mi
3:21:13
↑ 181↓ 1480.2%
20M
11:30/mi
3:36:50
↑ 64↓ 500.2%
21M
12:02/mi
3:48:52
↑ 106↓ 241.6%
35K· 21.75 mi
10:44/mi
3:56:54
↑ 17↓ 861.7%
23M
11:16/mi
4:11:01
↑ 23↓ 630.6%
24M
10:57/mi
4:21:58
↓ 821.3%
40K· 24.85 mi
11:14/mi
4:31:34
↓ 200.3%
25.2M
11:53/mi
4:35:40
↑ 13↓ 160.2%
Finish· 26.22 mi
10:48/mi
4:46:40
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:20:27
Pace10:43 /mi
2nd Half
Distance13.11 mi
Time2:26:13
Pace11:09 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:1533:4010:5033:40
10:50
-
10K
6.21 mi12:23:371:07:0210:4733:22
10:44
-0:06
15K
9.32 mi12:56:311:39:5610:4332:54
10:35
-0:09
20K
12.43 mi13:29:472:13:1210:4333:16
10:42
+0:07
Half
13.11 mi13:37:022:20:2710:437:15
10:38
-0:04
25K
15.53 mi14:03:142:46:3910:4426:12
10:48
+0:10
30K
18.64 mi14:37:483:21:1310:4834:34
11:08
+0:20
20M
20.00 mi14:53:253:36:5010:5015:37
11:30
+0:22
21M
21.00 mi15:05:273:48:5210:5412:02
12:02
+0:32
35K
21.75 mi15:13:293:56:5410:548:02
10:44
-1:18
23M
23.00 mi15:27:364:11:0110:5514:07
11:16
+0:32
24M
24.00 mi15:38:334:21:5810:5510:57
10:57
-0:19
40K
24.85 mi15:48:094:31:3410:569:36
11:14
+0:17
25.2M
25.20 mi15:52:154:35:4010:564:06
11:53
+0:39
Finish
26.22 mi16:03:154:46:4010:5611:00
10:48
-1:05

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

10:35 /mi

Average Pace

10:56 /mi

Slowest Pace

12:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:30:32

94% of race

Time at Steady Pace

16:08

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:56 /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 mi11:50:1533:4010:5033:40
10:50
#25432
10K
6.21 mi12:23:371:07:0210:4733:22
10:44
#25245
15K
9.32 mi12:56:311:39:5610:4332:54
10:35
#25020
20K
12.43 mi13:29:472:13:1210:4333:16
10:42
#24801
Half
13.11 mi13:37:022:20:2710:437:15
10:38
#24783
25K
15.53 mi14:03:142:46:3910:4426:12
10:48
#24609
30K
18.64 mi14:37:483:21:1310:4834:34
11:08
#24352
20M
20.00 mi14:53:253:36:5010:5015:37
11:30
#24271
21M
21.00 mi15:05:273:48:5210:5412:02
12:02
#24186
35K
21.75 mi15:13:293:56:5410:548:02
10:44
#24154
23M
23.00 mi15:27:364:11:0110:5514:07
11:16
#24088
24M
24.00 mi15:38:334:21:5810:5510:57
10:57
#24041
40K
24.85 mi15:48:094:31:3410:569:36
11:14
#24006
25.2M
25.20 mi15:52:154:35:4010:564:06
11:53
#23985
Finish
26.22 mi16:03:154:46:4010:5611:00
10:48
#23971
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25432106871068724612(Top 92%)10240(Top 90%)10240(Top 210%)
10K6.21 mi3.10 mi25245+18710567+12010567+12025071(Top 94%)10482(Top 92%)10482(Top 215%)
15K9.32 mi3.11 mi25020+22510447+12010447+12024612(Top 92%)10240(Top 90%)10240(Top 210%)
20K12.43 mi3.11 mi24801+21910343+10410343+10424189(Top 91%)10020(Top 88%)10020(Top 205%)
Half13.11 mi0.68 mi24783+1810337+610337+624428(Top 92%)10166(Top 89%)10166(Top 208%)
25K15.53 mi2.42 mi24609+17410252+8510252+8523681(Top 89%)9776(Top 86%)9776(Top 200%)
30K18.64 mi3.11 mi24352+25710122+13010122+13023302(Top 88%)9630(Top 84%)9630(Top 197%)
20M20.00 mi1.36 mi24271+8110091+3110091+3123515(Top 88%)9796(Top 86%)9796(Top 201%)
21M21.00 mi1.00 mi24186+8510056+3510056+3522816(Top 86%)9449(Top 83%)9449(Top 193%)
35K21.75 mi0.75 mi24154+3210038+1810038+1822829(Top 86%)9505(Top 83%)9505(Top 195%)
23M23.00 mi1.25 mi24088+6610010+2810010+2822860(Top 86%)9518(Top 83%)9518(Top 195%)
24M24.00 mi1.00 mi24041+479991+199991+1922966(Top 86%)9618(Top 84%)9618(Top 197%)
40K24.85 mi0.85 mi24006+359976+159976+1522798(Top 86%)9556(Top 84%)9556(Top 196%)
25.2M25.20 mi0.35 mi23985+219965+119965+1122328(Top 84%)9306(Top 81%)9306(Top 191%)
Finish26.22 mi1.02 mi23971+149965996523607(Top 89%)9961(Top 87%)9961(Top 204%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21story building
+97ft-345ft

Overall

24612

Females

10240

F18-39

10240

5K→10K

3.1 - 6.2 mi

Top 94%
×5story building
+79ft-138ft

Overall

25071

Females

10482

F18-39

10482

10K→15K

6.2 - 9.3 mi

Top 92%
×3story building
+67ft-78ft

Overall

24612

Females

10240

F18-39

10240

15K→20K

9.3 - 12.4 mi

Top 91%
×5story building
+106ft-86ft

Overall

24189

Females

10020

F18-39

10020

20K→Half

12.4 - 13.1 mi

Top 92%
×2story building
+19ft-37ft

Overall

24428

Females

10166

F18-39

10166

Half→25K

13.1 - 15.5 mi

Top 89%
×4story building
+66ft-88ft

Overall

23681

Females

9776

F18-39

9776

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

23302

Females

9630

F18-39

9630

30K→20M

18.6 - 20.0 mi

Top 88%
×5story building
+64ft-50ft

Overall

23515

Females

9796

F18-39

9796

20M→21M

20.0 - 21.0 mi

Top 86%
×8story building
+106ft-24ft

Overall

22816

Females

9449

F18-39

9449

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

22829

Females

9505

F18-39

9505

35K→23M

21.8 - 23.0 mi

Top 86%
×5story building
+23ft-63ft

Overall

22860

Females

9518

F18-39

9518

23M→24M

23.0 - 24.0 mi

Top 86%
×6story building
+12ft-82ft

Overall

22966

Females

9618

F18-39

9618

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

22798

Females

9556

F18-39

9556

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

22328

Females

9306

F18-39

9306

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2story building
+22ft-21ft

Overall

23607

Females

9961

F18-39

9961

Passing Analysis

Category:
Athletes Passed
1705
Passed By
244
Net Change
+1461
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25432
5K → 10K26780+187#25432#25245
10K → 15K24722+225#25245#25020
15K → 20K24021+219#25020#24801
20K → Half3315+18#24801#24783
Half → 25K1828+174#24783#24609
25K → 30K26912+257#24609#24352
30K → 20M9615+81#24352#24271
20M → 21M9813+85#24271#24186
21M → 35K375+32#24186#24154
35K → 23M7711+66#24154#24088
23M → 24M5710+47#24088#24041
24M → 40K4712+35#24041#24006
40K → 25.2M221+21#24006#23985
25.2M → Finish3319+14#23985#23971
TOTALS1705244+1461
📊

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