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BOSTON MARATHON 2023

Erin Anderson

Bib: 19033•F

UT

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 46%
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:18
Rank: #15049
Start → 5K
25:18 | 8:09/mi
10K· 6.21 mi
50:20
Rank: #15130 (-81)
5K → 10K
25:02 | 8:03/mi
15K· 9.32 mi
1:15:33
Rank: #15156 (-26)
10K → 15K
25:13 | 8:07/mi
20K· 12.43 mi
1:41:14
Rank: #15228 (-72)
15K → 20K
25:41 | 8:16/mi
Half· 13.11 mi
1:46:54
Rank: #15283 (-55)
20K → Half
5:40 | 8:18/mi
25K· 15.53 mi
2:06:54
Rank: #15130 (+153)
Half → 25K
20:00 | 8:15/mi
30K· 18.64 mi
2:34:10
Rank: #15260 (-130)
25K → 30K
27:16 | 8:47/mi
20M
2:46:17
Rank: #15324 (-64)
30K → 20M
12:07 | 8:55/mi
21M
2:55:39
Rank: #15297 (+27)
20M → 21M
9:22 | 9:22/mi
35K· 21.75 mi
3:01:54
Rank: #15236 (+61)
21M → 35K
6:15 | 8:21/mi
23M
3:12:50
Rank: #15192 (+44)
35K → 23M
10:56 | 8:44/mi
24M
3:21:45
Rank: #15251 (-59)
23M → 24M
8:55 | 8:55/mi
40K· 24.85 mi
3:29:37
Rank: #15351 (-100)
24M → 40K
7:52 | 9:12/mi
25.2M
3:33:16
Rank: #15439 (-88)
40K → 25.2M
3:39 | 10:35/mi
Finish· 26.22 mi
3:42:20
Rank: #15530 (-91)
25.2M → Finish
9:04 | 8:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:54
Pace8:09 /mi
2nd Half
Distance13.11 mi
Time1:55:26
Pace8:48 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:4725:188:0925:18
8:09
-
10K
6.21 mi11:41:4950:208:0625:02
8:03
-0:06
15K
9.32 mi12:07:021:15:338:0625:13
8:07
+0:04
20K
12.43 mi12:32:431:41:148:0925:41
8:16
+0:09
Half
13.11 mi12:38:231:46:548:095:40
8:18
+0:02
25K
15.53 mi12:58:232:06:548:1020:00
8:15
-0:03
30K
18.64 mi13:25:392:34:108:1627:16
8:47
+0:32
20M
20.00 mi13:37:462:46:178:1912:07
8:55
+0:08
21M
21.00 mi13:47:082:55:398:229:22
9:22
+0:27
35K
21.75 mi13:53:233:01:548:226:15
8:21
-1:01
23M
23.00 mi14:04:193:12:508:2310:56
8:44
+0:23
24M
24.00 mi14:13:143:21:458:248:55
8:55
+0:11
40K
24.85 mi14:21:063:29:378:267:52
9:12
+0:17
25.2M
25.20 mi14:24:453:33:168:283:39
10:35
+1:23
Finish
26.22 mi14:33:493:42:208:299:04
8:54
-1:41

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

8:03 /mi

Average Pace

8:29 /mi

Slowest Pace

10:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:09

60% of race

Time at Steady Pace

1:08:18

31% of race

Time at Slower Pace

20:53

9% of race

Average Pace: 8:29 /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 mi11:16:4725:188:0925:18
8:09
#15049
10K
6.21 mi11:41:4950:208:0625:02
8:03
#15130
15K
9.32 mi12:07:021:15:338:0625:13
8:07
#15156
20K
12.43 mi12:32:431:41:148:0925:41
8:16
#15228
Half
13.11 mi12:38:231:46:548:095:40
8:18
#15283
25K
15.53 mi12:58:232:06:548:1020:00
8:15
#15130
30K
18.64 mi13:25:392:34:108:1627:16
8:47
#15260
20M
20.00 mi13:37:462:46:178:1912:07
8:55
#15324
21M
21.00 mi13:47:082:55:398:229:22
9:22
#15297
35K
21.75 mi13:53:233:01:548:226:15
8:21
#15236
23M
23.00 mi14:04:193:12:508:2310:56
8:44
#15192
24M
24.00 mi14:13:143:21:458:248:55
8:55
#15251
40K
24.85 mi14:21:063:29:378:267:52
9:12
#15351
25.2M
25.20 mi14:24:453:33:168:283:39
10:35
#15439
Finish
26.22 mi14:33:493:42:208:299:04
8:54
#15530
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi150494674467415288(Top 57%)4848(Top 42%)4848(Top 99%)
10K6.21 mi3.10 mi15130-814732-584732-5815232(Top 57%)4819(Top 42%)4819(Top 99%)
15K9.32 mi3.11 mi15156-264758-264758-2615288(Top 57%)4848(Top 42%)4848(Top 99%)
20K12.43 mi3.11 mi15228-724828-704828-7015410(Top 58%)4974(Top 44%)4974(Top 102%)
Half13.11 mi0.68 mi15283-554865-374865-3716531(Top 62%)5614(Top 49%)5614(Top 115%)
25K15.53 mi2.42 mi15130+1534788+774788+7714606(Top 55%)4594(Top 40%)4594(Top 94%)
30K18.64 mi3.11 mi15260-1304919-1314919-13115915(Top 60%)5449(Top 48%)5449(Top 112%)
20M20.00 mi1.36 mi15324-644978-594978-5916100(Top 60%)5623(Top 49%)5623(Top 115%)
21M21.00 mi1.00 mi15297+274995-174995-1715346(Top 58%)5254(Top 46%)5254(Top 108%)
35K21.75 mi0.75 mi15236+614971+244971+2414485(Top 54%)4837(Top 42%)4837(Top 99%)
23M23.00 mi1.25 mi15192+444959+124959+1214608(Top 55%)4961(Top 43%)4961(Top 102%)
24M24.00 mi1.00 mi15251-595011-525011-5216855(Top 63%)6270(Top 55%)6270(Top 128%)
40K24.85 mi0.85 mi15351-1005094-835094-8317105(Top 64%)6459(Top 57%)6459(Top 132%)
25.2M25.20 mi0.35 mi15439-885159-655159-6519360(Top 73%)7694(Top 67%)7694(Top 158%)
Finish26.22 mi1.02 mi15530-915224-655224-6517486(Top 66%)6637(Top 58%)6637(Top 136%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21stories
+97ft-345ft

Overall

15288

Females

4848

F18-39

4848

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

15232

Females

4819

F18-39

4819

10K→15K

6.2 - 9.3 mi

Top 57%
×3stories
+67ft-78ft

Overall

15288

Females

4848

F18-39

4848

15K→20K

9.3 - 12.4 mi

Top 58%
×5stories
+106ft-86ft

Overall

15410

Females

4974

F18-39

4974

20K→Half

12.4 - 13.1 mi

Top 62%
×2stories
+19ft-37ft

Overall

16531

Females

5614

F18-39

5614

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

14606

Females

4594

F18-39

4594

25K→30K

15.5 - 18.6 mi

Top 60%
×9stories
+181ft-148ft

Overall

15915

Females

5449

F18-39

5449

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

16100

Females

5623

F18-39

5623

20M→21M

20.0 - 21.0 mi

Top 58%
×8stories
+106ft-24ft

Overall

15346

Females

5254

F18-39

5254

21M→35K

21.0 - 21.8 mi

Top 54%
×7stories
+17ft-86ft

Overall

14485

Females

4837

F18-39

4837

35K→23M

21.8 - 23.0 mi

Top 55%
×5stories
+23ft-63ft

Overall

14608

Females

4961

F18-39

4961

23M→24M

23.0 - 24.0 mi

Top 63%
×6stories
+12ft-82ft

Overall

16855

Females

6270

F18-39

6270

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

17105

Females

6459

F18-39

6459

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19360

Females

7694

F18-39

7694

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2stories
+22ft-21ft

Overall

17486

Females

6637

F18-39

6637

Passing Analysis

Category:
Athletes Passed
1449
Passed By
1930
Net Change
-481
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15049
5K → 10K270351-81#15049#15130
10K → 15K157183-26#15130#15156
15K → 20K163235-72#15156#15228
20K → Half2075-55#15228#15283
Half → 25K21663+153#15283#15130
25K → 30K137267-130#15130#15260
30K → 20M68132-64#15260#15324
20M → 21M9871+27#15324#15297
21M → 35K7312+61#15297#15236
35K → 23M10460+44#15236#15192
23M → 24M53112-59#15192#15251
24M → 40K34134-100#15251#15351
40K → 25.2M15103-88#15351#15439
25.2M → Finish41132-91#15439#15530
TOTALS14491930-481
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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