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BOSTON MARATHON 2023

Erin Lyons

Bib: 27431•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F40-44)
#0 / 1878
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
10:38/mi
33:03
↑ 97↓ 3451.5%
10K· 6.21 mi
10:33/mi
1:05:50
↑ 79↓ 1380.4%
15K· 9.32 mi
10:27/mi
1:38:19
↑ 67↓ 78
20K· 12.43 mi
10:41/mi
2:11:31
↑ 106↓ 860.1%
Half· 13.11 mi
10:24/mi
2:18:37
↑ 19↓ 370.5%
25K· 15.53 mi
10:47/mi
2:44:45
↑ 66↓ 880.2%
30K· 18.64 mi
11:07/mi
3:19:18
↑ 181↓ 1480.2%
20M
11:08/mi
3:34:26
↑ 64↓ 500.2%
21M
11:43/mi
3:46:09
↑ 106↓ 241.6%
35K· 21.75 mi
10:46/mi
3:54:12
↑ 17↓ 861.7%
23M
10:55/mi
4:07:52
↑ 23↓ 630.6%
24M
10:35/mi
4:18:27
↓ 821.3%
40K· 24.85 mi
10:47/mi
4:27:40
↓ 200.3%
25.2M
10:52/mi
4:31:25
↑ 13↓ 160.2%
Finish· 26.22 mi
9:36/mi
4:41:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:18:37
Pace10:34 /mi
2nd Half
Distance13.11 mi
Time2:22:35
Pace10:53 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:2433:0310:3833:03
10:38
-
10K
6.21 mi12:27:111:05:5010:3632:47
10:33
-0:05
15K
9.32 mi12:59:401:38:1910:3332:29
10:27
-0:06
20K
12.43 mi13:32:522:11:3110:3533:12
10:41
+0:14
Half
13.11 mi13:39:582:18:3710:347:06
10:24
-0:17
25K
15.53 mi14:06:062:44:4510:3626:08
10:47
+0:23
30K
18.64 mi14:40:393:19:1810:4134:33
11:07
+0:20
20M
20.00 mi14:55:473:34:2610:4315:08
11:08
+0:01
21M
21.00 mi15:07:303:46:0910:4611:43
11:43
+0:35
35K
21.75 mi15:15:333:54:1210:468:03
10:46
-0:57
23M
23.00 mi15:29:134:07:5210:4713:40
10:55
+0:09
24M
24.00 mi15:39:484:18:2710:4610:35
10:35
-0:20
40K
24.85 mi15:49:014:27:4010:469:13
10:47
+0:12
25.2M
25.20 mi15:52:464:31:2510:463:45
10:52
+0:05
Finish
26.22 mi16:02:334:41:1210:449:47
9:36
-1:16

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

9:36 /mi

Average Pace

10:44 /mi

Slowest Pace

11:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

49:22

18% of race

Time at Steady Pace

2:50:26

61% of race

Time at Slower Pace

1:01:24

22% of race

Average Pace: 10:43 /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 mi11:54:2433:0310:3833:03
10:38
#25044
10K
6.21 mi12:27:111:05:5010:3632:47
10:33
#24899
15K
9.32 mi12:59:401:38:1910:3332:29
10:27
#24717
20K
12.43 mi13:32:522:11:3110:3533:12
10:41
#24555
Half
13.11 mi13:39:582:18:3710:347:06
10:24
#24527
25K
15.53 mi14:06:062:44:4510:3626:08
10:47
#24362
30K
18.64 mi14:40:393:19:1810:4134:33
11:07
#24152
20M
20.00 mi14:55:473:34:2610:4315:08
11:08
#24068
21M
21.00 mi15:07:303:46:0910:4611:43
11:43
#23989
35K
21.75 mi15:15:333:54:1210:468:03
10:46
#23959
23M
23.00 mi15:29:134:07:5210:4713:40
10:55
#23867
24M
24.00 mi15:39:484:18:2710:4610:35
10:35
#23807
40K
24.85 mi15:49:014:27:4010:469:13
10:47
#23745
25.2M
25.20 mi15:52:464:31:2510:463:45
10:52
#23708
Finish
26.22 mi16:02:334:41:1210:449:47
9:36
#23634
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi25044104561045624380(Top 92%)10107(Top 88%)10107(Top 538%)
10K6.21 mi3.10 mi24899+14510380+7610380+7624772(Top 93%)10312(Top 90%)10312(Top 549%)
15K9.32 mi3.11 mi24717+18210288+9210288+9224380(Top 92%)10107(Top 88%)10107(Top 538%)
20K12.43 mi3.11 mi24555+16210210+7810210+7824150(Top 91%)9995(Top 87%)9995(Top 532%)
Half13.11 mi0.68 mi24527+2810196+1410196+1424042(Top 90%)9933(Top 87%)9933(Top 529%)
25K15.53 mi2.42 mi24362+16510109+8710109+8723644(Top 89%)9757(Top 85%)9757(Top 520%)
30K18.64 mi3.11 mi24152+21010007+10210007+10223286(Top 87%)9619(Top 84%)9619(Top 512%)
20M20.00 mi1.36 mi24068+849974+339974+3322933(Top 86%)9472(Top 83%)9472(Top 504%)
21M21.00 mi1.00 mi23989+799936+389936+3822273(Top 84%)9153(Top 80%)9153(Top 487%)
35K21.75 mi0.75 mi23959+309925+119925+1122862(Top 86%)9523(Top 83%)9523(Top 507%)
23M23.00 mi1.25 mi23867+929880+459880+4522194(Top 83%)9163(Top 80%)9163(Top 488%)
24M24.00 mi1.00 mi23807+609856+249856+2422219(Top 83%)9224(Top 81%)9224(Top 491%)
40K24.85 mi0.85 mi23745+629827+299827+2921915(Top 82%)9109(Top 80%)9109(Top 485%)
25.2M25.20 mi0.35 mi23708+379810+179810+1720212(Top 76%)8181(Top 72%)8181(Top 436%)
Finish26.22 mi1.02 mi23634+749779+319779+3120506(Top 77%)8303(Top 73%)8303(Top 442%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21story building
+97ft-345ft

Overall

24380

Females

10107

F40-44

10107

5K→10K

3.1 - 6.2 mi

Top 93%
×5story building
+79ft-138ft

Overall

24772

Females

10312

F40-44

10312

10K→15K

6.2 - 9.3 mi

Top 92%
×3story building
+67ft-78ft

Overall

24380

Females

10107

F40-44

10107

15K→20K

9.3 - 12.4 mi

Top 91%
×5story building
+106ft-86ft

Overall

24150

Females

9995

F40-44

9995

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

24042

Females

9933

F40-44

9933

Half→25K

13.1 - 15.5 mi

Top 89%
×4story building
+66ft-88ft

Overall

23644

Females

9757

F40-44

9757

25K→30K

15.5 - 18.6 mi

Top 87%
×9story building
+181ft-148ft

Overall

23286

Females

9619

F40-44

9619

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

22933

Females

9472

F40-44

9472

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

22273

Females

9153

F40-44

9153

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

22862

Females

9523

F40-44

9523

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

22194

Females

9163

F40-44

9163

23M→24M

23.0 - 24.0 mi

Top 83%
×6story building
+12ft-82ft

Overall

22219

Females

9224

F40-44

9224

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

21915

Females

9109

F40-44

9109

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

20212

Females

8181

F40-44

8181

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

20506

Females

8303

F40-44

8303

Passing Analysis

Category:
Athletes Passed
1728
Passed By
318
Net Change
+1410
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25044
5K → 10K263118+145#25044#24899
10K → 15K22139+182#24899#24717
15K → 20K19230+162#24717#24555
20K → Half4113+28#24555#24527
Half → 25K18015+165#24527#24362
25K → 30K24737+210#24362#24152
30K → 20M10016+84#24152#24068
20M → 21M889+79#24068#23989
21M → 35K4616+30#23989#23959
35K → 23M975+92#23959#23867
23M → 24M7010+60#23867#23807
24M → 40K664+62#23807#23745
40K → 25.2M414+37#23745#23708
25.2M → Finish762+74#23708#23634
TOTALS1728318+1410
📊

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