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BOSTON MARATHON 2023

Ashleigh Erwin

Bib: 31018•F

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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
10:12/mi
31:40
↑ 97↓ 3451.5%
10K· 6.21 mi
9:31/mi
1:01:14
↑ 79↓ 1380.4%
15K· 9.32 mi
9:20/mi
1:30:14
↑ 67↓ 78
20K· 12.43 mi
9:28/mi
1:59:38
↑ 106↓ 860.1%
Half· 13.11 mi
9:35/mi
2:06:10
↑ 19↓ 370.5%
25K· 15.53 mi
9:43/mi
2:29:44
↑ 66↓ 880.2%
30K· 18.64 mi
9:54/mi
3:00:31
↑ 181↓ 1480.2%
20M
9:51/mi
3:13:54
↑ 64↓ 500.2%
21M
10:29/mi
3:24:23
↑ 106↓ 241.6%
35K· 21.75 mi
9:23/mi
3:31:24
↑ 17↓ 861.7%
23M
9:57/mi
3:43:52
↑ 23↓ 630.6%
24M
9:29/mi
3:53:21
↓ 821.3%
40K· 24.85 mi
9:42/mi
4:01:39
↓ 200.3%
25.2M
9:46/mi
4:05:01
↑ 13↓ 160.2%
Finish· 26.22 mi
8:26/mi
4:13:37
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:06:10
Pace9:37 /mi
2nd Half
Distance13.11 mi
Time2:07:27
Pace9:43 /mi
📊Positive Split: 1.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:0131:4010:1231:40
10:12
-
10K
6.21 mi12:20:351:01:149:5129:34
9:31
-0:41
15K
9.32 mi12:49:351:30:149:4129:00
9:20
-0:11
20K
12.43 mi13:18:591:59:389:3829:24
9:28
+0:08
Half
13.11 mi13:25:312:06:109:376:32
9:35
+0:07
25K
15.53 mi13:49:052:29:449:3823:34
9:43
+0:08
30K
18.64 mi14:19:523:00:319:4130:47
9:54
+0:11
20M
20.00 mi14:33:153:13:549:4213:23
9:51
-0:03
21M
21.00 mi14:43:443:24:239:4410:29
10:29
+0:38
35K
21.75 mi14:50:453:31:249:437:01
9:23
-1:06
23M
23.00 mi15:03:133:43:529:4412:28
9:57
+0:34
24M
24.00 mi15:12:423:53:219:439:29
9:29
-0:28
40K
24.85 mi15:21:004:01:399:438:18
9:42
+0:13
25.2M
25.20 mi15:24:224:05:019:433:22
9:46
+0:04
Finish
26.22 mi15:32:584:13:379:418:36
8:26
-1:20

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

8:26 /mi

Average Pace

9:41 /mi

Slowest Pace

10:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:01

29% of race

Time at Steady Pace

2:04:59

49% of race

Time at Slower Pace

54:37

22% of race

Average Pace: 9:40 /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 mi11:51:0131:4010:1231:40
10:12
#23931
10K
6.21 mi12:20:351:01:149:5129:34
9:31
#23293
15K
9.32 mi12:49:351:30:149:4129:00
9:20
#22825
20K
12.43 mi13:18:591:59:389:3829:24
9:28
#22483
Half
13.11 mi13:25:312:06:109:376:32
9:35
#22479
25K
15.53 mi13:49:052:29:449:3823:34
9:43
#22318
30K
18.64 mi14:19:523:00:319:4130:47
9:54
#22013
20M
20.00 mi14:33:153:13:549:4213:23
9:51
#21864
21M
21.00 mi14:43:443:24:239:4410:29
10:29
#21745
35K
21.75 mi14:50:453:31:249:437:01
9:23
#21680
23M
23.00 mi15:03:133:43:529:4412:28
9:57
#21557
24M
24.00 mi15:12:423:53:219:439:29
9:29
#21449
40K
24.85 mi15:21:004:01:399:438:18
9:42
#21348
25.2M
25.20 mi15:24:224:05:019:433:22
9:46
#21274
Finish
26.22 mi15:32:584:13:379:418:36
8:26
#21109
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi239319852985221756(Top 82%)8650(Top 76%)8650(Top 177%)
10K6.21 mi3.10 mi23293+6389521+3319521+33122564(Top 85%)9120(Top 80%)9120(Top 187%)
15K9.32 mi3.11 mi22825+4689251+2709251+27021756(Top 82%)8650(Top 76%)8650(Top 177%)
20K12.43 mi3.11 mi22483+3429077+1749077+17421443(Top 81%)8493(Top 74%)8493(Top 174%)
Half13.11 mi0.68 mi22479+49077907722325(Top 84%)8960(Top 78%)8960(Top 183%)
25K15.53 mi2.42 mi22318+1619011+669011+6621534(Top 81%)8574(Top 75%)8574(Top 176%)
30K18.64 mi3.11 mi22013+3058841+1708841+17020777(Top 78%)8212(Top 72%)8212(Top 168%)
20M20.00 mi1.36 mi21864+1498766+758766+7520024(Top 75%)7870(Top 69%)7870(Top 161%)
21M21.00 mi1.00 mi21745+1198715+518715+5119573(Top 74%)7691(Top 67%)7691(Top 157%)
35K21.75 mi0.75 mi21680+658685+308685+3019491(Top 73%)7664(Top 67%)7664(Top 157%)
23M23.00 mi1.25 mi21557+1238634+518634+5119878(Top 75%)7894(Top 69%)7894(Top 162%)
24M24.00 mi1.00 mi21449+1088585+498585+4919175(Top 72%)7551(Top 66%)7551(Top 155%)
40K24.85 mi0.85 mi21348+1018539+468539+4619072(Top 72%)7542(Top 66%)7542(Top 154%)
25.2M25.20 mi0.35 mi21274+748503+368503+3616466(Top 62%)6160(Top 54%)6160(Top 126%)
Finish26.22 mi1.02 mi21109+1658433+708433+7015073(Top 57%)5308(Top 46%)5308(Top 109%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

21756

Females

8650

F18-39

8650

5K→10K

3.1 - 6.2 mi

Top 85%
×5story building
+79ft-138ft

Overall

22564

Females

9120

F18-39

9120

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

21756

Females

8650

F18-39

8650

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

21443

Females

8493

F18-39

8493

20K→Half

12.4 - 13.1 mi

Top 84%
×2story building
+19ft-37ft

Overall

22325

Females

8960

F18-39

8960

Half→25K

13.1 - 15.5 mi

Top 81%
×4story building
+66ft-88ft

Overall

21534

Females

8574

F18-39

8574

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

20777

Females

8212

F18-39

8212

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

20024

Females

7870

F18-39

7870

20M→21M

20.0 - 21.0 mi

Top 74%
×8story building
+106ft-24ft

Overall

19573

Females

7691

F18-39

7691

21M→35K

21.0 - 21.8 mi

Top 73%
×7story building
+17ft-86ft

Overall

19491

Females

7664

F18-39

7664

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

19878

Females

7894

F18-39

7894

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

19175

Females

7551

F18-39

7551

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

19072

Females

7542

F18-39

7542

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16466

Females

6160

F18-39

6160

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

15073

Females

5308

F18-39

5308

Passing Analysis

Category:
Athletes Passed
3015
Passed By
193
Net Change
+2822
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23931
5K → 10K67638+638#23931#23293
10K → 15K48416+468#23293#22825
15K → 20K36119+342#22825#22483
20K → Half3026+4#22483#22479
Half → 25K18726+161#22479#22318
25K → 30K32015+305#22318#22013
30K → 20M16112+149#22013#21864
20M → 21M1289+119#21864#21745
21M → 35K705+65#21745#21680
35K → 23M13714+123#21680#21557
23M → 24M1124+108#21557#21449
24M → 40K1109+101#21449#21348
40K → 25.2M740+74#21348#21274
25.2M → Finish1650+165#21274#21109
TOTALS3015193+2822
📊

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