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BOSTON MARATHON 2023

Bailey Ayers

Bib: 12766•F

WA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 36%
Gender (Female)
#0 / 11423
Top 17%
Division (F18-39)
#0 / 4884
Top 31%
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
7:38/mi
23:42
↑ 97↓ 3451.5%
10K· 6.21 mi
7:34/mi
47:12
↑ 79↓ 1380.4%
15K· 9.32 mi
7:34/mi
1:10:42
↑ 67↓ 78
20K· 12.43 mi
7:38/mi
1:34:26
↑ 106↓ 860.1%
Half· 13.11 mi
7:21/mi
1:39:27
↑ 19↓ 370.5%
25K· 15.53 mi
7:35/mi
1:57:50
↑ 66↓ 880.2%
30K· 18.64 mi
7:47/mi
2:22:01
↑ 181↓ 1480.2%
20M
7:54/mi
2:32:45
↑ 64↓ 500.2%
21M
8:03/mi
2:40:48
↑ 106↓ 241.6%
35K· 21.75 mi
7:28/mi
2:46:23
↑ 17↓ 861.7%
23M
8:18/mi
2:56:47
↑ 23↓ 630.6%
24M
8:10/mi
3:04:57
↓ 821.3%
40K· 24.85 mi
7:38/mi
3:11:29
↓ 200.3%
25.2M
8:22/mi
3:14:22
↑ 13↓ 160.2%
Finish· 26.22 mi
7:19/mi
3:21:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:27
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:42:22
Pace7:49 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:4823:427:3823:42
7:38
-
10K
6.21 mi11:15:1847:127:3623:30
7:34
-0:04
15K
9.32 mi11:38:481:10:427:3523:30
7:34
0:00
20K
12.43 mi12:02:321:34:267:3623:44
7:38
+0:04
Half
13.11 mi12:07:331:39:277:355:01
7:21
-0:17
25K
15.53 mi12:25:561:57:507:3518:23
7:35
+0:14
30K
18.64 mi12:50:072:22:017:3724:11
7:47
+0:12
20M
20.00 mi13:00:512:32:457:3810:44
7:54
+0:07
21M
21.00 mi13:08:542:40:487:398:03
8:03
+0:09
35K
21.75 mi13:14:292:46:237:395:35
7:28
-0:35
23M
23.00 mi13:24:532:56:477:4110:24
8:18
+0:50
24M
24.00 mi13:33:033:04:577:428:10
8:10
-0:08
40K
24.85 mi13:39:353:11:297:426:32
7:38
-0:32
25.2M
25.20 mi13:42:283:14:227:432:53
8:22
+0:44
Finish
26.22 mi13:49:553:21:497:427:27
7:19
-1:03

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

7:19 /mi

Average Pace

7:42 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:19

85% of race

Time at Steady Pace

29:30

15% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:42 /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 mi10:51:4823:427:3823:42
7:38
#10814
10K
6.21 mi11:15:1847:127:3623:30
7:34
#10889
15K
9.32 mi11:38:481:10:427:3523:30
7:34
#10805
20K
12.43 mi12:02:321:34:267:3623:44
7:38
#10699
Half
13.11 mi12:07:331:39:277:355:01
7:21
#10599
25K
15.53 mi12:25:561:57:507:3518:23
7:35
#10355
30K
18.64 mi12:50:072:22:017:3724:11
7:47
#10119
20M
20.00 mi13:00:512:32:457:3810:44
7:54
#10051
21M
21.00 mi13:08:542:40:487:398:03
8:03
#9873
35K
21.75 mi13:14:292:46:237:395:35
7:28
#9804
23M
23.00 mi13:24:532:56:477:4110:24
8:18
#9897
24M
24.00 mi13:33:033:04:577:428:10
8:10
#10000
40K
24.85 mi13:39:353:11:297:426:32
7:38
#9871
25.2M
25.20 mi13:42:283:14:227:432:53
8:22
#9827
Finish
26.22 mi13:49:553:21:497:427:27
7:19
#9670
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi108142231223110723(Top 40%)2192(Top 19%)2192(Top 45%)
10K6.21 mi3.10 mi10889-752269-382269-3811005(Top 41%)2309(Top 20%)2309(Top 47%)
15K9.32 mi3.11 mi10805+842235+342235+3410723(Top 40%)2192(Top 19%)2192(Top 45%)
20K12.43 mi3.11 mi10699+1062188+472188+4710424(Top 39%)2105(Top 18%)2105(Top 43%)
Half13.11 mi0.68 mi10599+1002121+672121+679105(Top 34%)1529(Top 13%)1529(Top 31%)
25K15.53 mi2.42 mi10355+2442024+972024+979427(Top 35%)1747(Top 15%)1747(Top 36%)
30K18.64 mi3.11 mi10119+2361948+761948+769244(Top 35%)1816(Top 16%)1816(Top 37%)
20M20.00 mi1.36 mi10051+681946+21946+29569(Top 36%)2045(Top 18%)2045(Top 42%)
21M21.00 mi1.00 mi9873+1781888+581888+587716(Top 29%)1401(Top 12%)1401(Top 29%)
35K21.75 mi0.75 mi9804+691874+141874+148333(Top 31%)1635(Top 14%)1635(Top 33%)
23M23.00 mi1.25 mi9897-931951-771951-7711936(Top 45%)3474(Top 30%)3474(Top 71%)
24M24.00 mi1.00 mi10000-1032036-852036-8512381(Top 47%)3778(Top 33%)3778(Top 77%)
40K24.85 mi0.85 mi9871+1292002+342002+347603(Top 29%)1610(Top 14%)1610(Top 33%)
25.2M25.20 mi0.35 mi9827+441991+111991+118723(Top 33%)2126(Top 19%)2126(Top 44%)
Finish26.22 mi1.02 mi9670+1571952+391952+397229(Top 27%)1522(Top 13%)1522(Top 31%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

10723

Females

2192

F18-39

2192

5K→10K

3.1 - 6.2 mi

Top 41%
×5story building
+79ft-138ft

Overall

11005

Females

2309

F18-39

2309

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

10723

Females

2192

F18-39

2192

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10424

Females

2105

F18-39

2105

20K→Half

12.4 - 13.1 mi

Top 34%
×2story building
+19ft-37ft

Overall

9105

Females

1529

F18-39

1529

Half→25K

13.1 - 15.5 mi

Top 35%
×4story building
+66ft-88ft

Overall

9427

Females

1747

F18-39

1747

25K→30K

15.5 - 18.6 mi

Top 35%
×9story building
+181ft-148ft

Overall

9244

Females

1816

F18-39

1816

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

9569

Females

2045

F18-39

2045

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

7716

Females

1401

F18-39

1401

21M→35K

21.0 - 21.8 mi

Top 31%
×7story building
+17ft-86ft

Overall

8333

Females

1635

F18-39

1635

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

11936

Females

3474

F18-39

3474

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

12381

Females

3778

F18-39

3778

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7603

Females

1610

F18-39

1610

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

8723

Females

2126

F18-39

2126

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2story building
+22ft-21ft

Overall

7229

Females

1522

F18-39

1522

Passing Analysis

Category:
Athletes Passed
2221*
Passed By
1075
Net Change
+1144
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10814
5K → 10K256331-75#10814#10889
10K → 15K225141+84#10889#10805
15K → 20K210104+106#10805#10699
20K → Half1055+100#10699#10599
Half → 25K27329+244#10599#10355
25K → 30K288*52+236#10355#10119
30K → 20M12153+68#10119#10051
20M → 21M194*16+178#10051#9873
21M → 35K789+69#9873#9804
35K → 23M61154-93#9804#9897
23M → 24M41142-103#9897#10000
24M → 40K146*17+129#10000#9871
40K → 25.2M539+44#9871#9827
25.2M → Finish170*13+157#9827#9670
TOTALS2221*1075+1144

* 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