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BOSTON MARATHON 2023

Kayla Ayer

Bib: 17718•F

KS

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
7:37/mi
23:39
↑ 97↓ 3451.5%
10K· 6.21 mi
7:25/mi
46:42
↑ 79↓ 1380.4%
15K· 9.32 mi
7:26/mi
1:09:47
↑ 67↓ 78
20K· 12.43 mi
7:31/mi
1:33:08
↑ 106↓ 860.1%
Half· 13.11 mi
7:30/mi
1:38:15
↑ 19↓ 370.5%
25K· 15.53 mi
7:38/mi
1:56:46
↑ 66↓ 880.2%
30K· 18.64 mi
7:43/mi
2:20:45
↑ 181↓ 1480.2%
20M
7:56/mi
2:31:32
↑ 64↓ 500.2%
21M
8:19/mi
2:39:51
↑ 106↓ 241.6%
35K· 21.75 mi
7:52/mi
2:45:44
↑ 17↓ 861.7%
23M
8:05/mi
2:55:51
↑ 23↓ 630.6%
24M
7:54/mi
3:03:45
↓ 821.3%
40K· 24.85 mi
8:08/mi
3:10:42
↓ 200.3%
25.2M
8:54/mi
3:13:46
↑ 13↓ 160.2%
Finish· 26.22 mi
7:54/mi
3:21:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:15
Pace7:30 /mi
2nd Half
Distance13.11 mi
Time1:43:34
Pace7:54 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:1123:397:3723:39
7:37
-
10K
6.21 mi11:37:1446:427:3123:03
7:25
-0:12
15K
9.32 mi12:00:191:09:477:2923:05
7:26
+0:01
20K
12.43 mi12:23:401:33:087:3023:21
7:31
+0:05
Half
13.11 mi12:28:471:38:157:305:07
7:30
-0:01
25K
15.53 mi12:47:181:56:467:3118:31
7:38
+0:08
30K
18.64 mi13:11:172:20:457:3323:59
7:43
+0:05
20M
20.00 mi13:22:042:31:327:3510:47
7:56
+0:13
21M
21.00 mi13:30:232:39:517:378:19
8:19
+0:23
35K
21.75 mi13:36:162:45:447:375:53
7:52
-0:27
23M
23.00 mi13:46:232:55:517:3910:07
8:05
+0:13
24M
24.00 mi13:54:173:03:457:397:54
7:54
-0:11
40K
24.85 mi14:01:143:10:427:406:57
8:08
+0:14
25.2M
25.20 mi14:04:183:13:467:413:04
8:54
+0:46
Finish
26.22 mi14:12:213:21:497:428:03
7:54
-1:00

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

7:25 /mi

Average Pace

7:42 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:10:26

94% of race

Time at Steady Pace

8:19

4% of race

Time at Slower Pace

3:04

2% 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 mi11:14:1123:397:3723:39
7:37
#10656
10K
6.21 mi11:37:1446:427:3123:03
7:25
#10196
15K
9.32 mi12:00:191:09:477:2923:05
7:26
#9923
20K
12.43 mi12:23:401:33:087:3023:21
7:31
#9774
Half
13.11 mi12:28:471:38:157:305:07
7:30
#9805
25K
15.53 mi12:47:181:56:467:3118:31
7:38
#9794
30K
18.64 mi13:11:172:20:457:3323:59
7:43
#9593
20M
20.00 mi13:22:042:31:327:3510:47
7:56
#9581
21M
21.00 mi13:30:232:39:517:378:19
8:19
#9530
35K
21.75 mi13:36:162:45:447:375:53
7:52
#9575
23M
23.00 mi13:46:232:55:517:3910:07
8:05
#9580
24M
24.00 mi13:54:173:03:457:397:54
7:54
#9596
40K
24.85 mi14:01:143:10:427:406:57
8:08
#9607
25.2M
25.20 mi14:04:183:13:467:413:04
8:54
#9628
Finish
26.22 mi14:12:213:21:497:428:03
7:54
#9672
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10656216221629617(Top 36%)1673(Top 15%)1673(Top 34%)
10K6.21 mi3.10 mi10196+4601928+2341928+2349809(Top 37%)1735(Top 15%)1735(Top 36%)
15K9.32 mi3.11 mi9923+2731790+1381790+1389617(Top 36%)1673(Top 15%)1673(Top 34%)
20K12.43 mi3.11 mi9774+1491739+511739+519448(Top 35%)1670(Top 15%)1670(Top 34%)
Half13.11 mi0.68 mi9805-311754-151754-1510287(Top 39%)2020(Top 18%)2020(Top 41%)
25K15.53 mi2.42 mi9794+111763-91763-99838(Top 37%)1935(Top 17%)1935(Top 40%)
30K18.64 mi3.11 mi9593+2011714+491714+498802(Top 33%)1635(Top 14%)1635(Top 33%)
20M20.00 mi1.36 mi9581+121742-281742-289810(Top 37%)2152(Top 19%)2152(Top 44%)
21M21.00 mi1.00 mi9530+511744-21744-29350(Top 35%)2075(Top 18%)2075(Top 42%)
35K21.75 mi0.75 mi9575-451773-291773-2911141(Top 42%)2928(Top 26%)2928(Top 60%)
23M23.00 mi1.25 mi9580-51810-371810-3710319(Top 39%)2663(Top 23%)2663(Top 55%)
24M24.00 mi1.00 mi9596-161840-301840-3010529(Top 40%)2836(Top 25%)2836(Top 58%)
40K24.85 mi0.85 mi9607-111873-331873-3310902(Top 41%)3088(Top 27%)3088(Top 63%)
25.2M25.20 mi0.35 mi9628-211901-281901-2811920(Top 45%)3658(Top 32%)3658(Top 75%)
Finish26.22 mi1.02 mi9672-441954-531954-5311403(Top 43%)3391(Top 30%)3391(Top 69%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21story building
+97ft-345ft

Overall

9617

Females

1673

F18-39

1673

5K→10K

3.1 - 6.2 mi

Top 37%
×5story building
+79ft-138ft

Overall

9809

Females

1735

F18-39

1735

10K→15K

6.2 - 9.3 mi

Top 36%
×3story building
+67ft-78ft

Overall

9617

Females

1673

F18-39

1673

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

9448

Females

1670

F18-39

1670

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

10287

Females

2020

F18-39

2020

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

9838

Females

1935

F18-39

1935

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

8802

Females

1635

F18-39

1635

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

9810

Females

2152

F18-39

2152

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

9350

Females

2075

F18-39

2075

21M→35K

21.0 - 21.8 mi

Top 42%
×7story building
+17ft-86ft

Overall

11141

Females

2928

F18-39

2928

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

10319

Females

2663

F18-39

2663

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

10529

Females

2836

F18-39

2836

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

10902

Females

3088

F18-39

3088

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

11920

Females

3658

F18-39

3658

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2story building
+22ft-21ft

Overall

11403

Females

3391

F18-39

3391

Passing Analysis

Category:
Athletes Passed
2087*
Passed By
1103
Net Change
+984
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10656
5K → 10K587*127+460#10656#10196
10K → 15K336*63+273#10196#9923
15K → 20K231*82+149#9923#9774
20K → Half1950-31#9774#9805
Half → 25K124113+11#9805#9794
25K → 30K269*68+201#9794#9593
30K → 20M9280+12#9593#9581
20M → 21M10352+51#9581#9530
21M → 35K3479-45#9530#9575
35K → 23M9196-5#9575#9580
23M → 24M5773-16#9580#9596
24M → 40K53*64-11#9596#9607
40K → 25.2M3758-21#9607#9628
25.2M → Finish5498-44#9628#9672
TOTALS2087*1103+984

* 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