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BOSTON MARATHON 2023

Erin Muir

Bib: 11051•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 26%
Gender (Female)
#0 / 11423
Top 8%
Division (F18-39)
#0 / 4884
Top 15%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:45
Rank: #8266
Start → 5K
22:45 | 7:19/mi
10K· 6.21 mi
44:27
Rank: #7452 (+814)
5K → 10K
21:42 | 6:59/mi
15K· 9.32 mi
1:05:53
Rank: #6900 (+552)
10K → 15K
21:26 | 6:54/mi
20K· 12.43 mi
1:27:32
Rank: #6609 (+291)
15K → 20K
21:39 | 6:58/mi
Half· 13.11 mi
1:32:14
Rank: #6569 (+40)
20K → Half
4:42 | 6:53/mi
25K· 15.53 mi
1:49:28
Rank: #6487 (+82)
Half → 25K
17:14 | 7:06/mi
30K· 18.64 mi
2:12:59
Rank: #6593 (-106)
25K → 30K
23:31 | 7:34/mi
20M
2:23:46
Rank: #6761 (-168)
30K → 20M
10:47 | 7:56/mi
21M
2:32:31
Rank: #6940 (-179)
20M → 21M
8:45 | 8:45/mi
35K· 21.75 mi
2:37:52
Rank: #6896 (+44)
21M → 35K
5:21 | 7:09/mi
23M
2:47:43
Rank: #6947 (-51)
35K → 23M
9:51 | 7:52/mi
24M
2:55:11
Rank: #6937 (+10)
23M → 24M
7:28 | 7:28/mi
40K· 24.85 mi
3:01:44
Rank: #6939 (-2)
24M → 40K
6:33 | 7:40/mi
25.2M
3:04:38
Rank: #6943 (-4)
40K → 25.2M
2:54 | 8:25/mi
Finish· 26.22 mi
3:12:22
Rank: #6982 (-39)
25.2M → Finish
7:44 | 7:35/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:14
Pace7:02 /mi
2nd Half
Distance13.11 mi
Time1:40:08
Pace7:38 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:0022:457:1922:45
7:19
-
10K
6.21 mi11:11:4244:277:0921:42
6:59
-0:20
15K
9.32 mi11:33:081:05:537:0421:26
6:54
-0:05
20K
12.43 mi11:54:471:27:327:0321:39
6:58
+0:04
Half
13.11 mi11:59:291:32:147:024:42
6:53
-0:05
25K
15.53 mi12:16:431:49:287:0317:14
7:06
+0:13
30K
18.64 mi12:40:142:12:597:0823:31
7:34
+0:28
20M
20.00 mi12:51:012:23:467:1110:47
7:56
+0:22
21M
21.00 mi12:59:462:32:317:168:45
8:45
+0:49
35K
21.75 mi13:05:072:37:527:165:21
7:09
-1:36
23M
23.00 mi13:14:582:47:437:189:51
7:52
+0:43
24M
24.00 mi13:22:262:55:117:187:28
7:28
-0:24
40K
24.85 mi13:28:593:01:447:196:33
7:40
+0:12
25.2M
25.20 mi13:31:533:04:387:202:54
8:25
+0:45
Finish
26.22 mi13:39:373:12:227:217:44
7:35
-0:50

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

6:53 /mi

Average Pace

7:21 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:04

48% of race

Time at Steady Pace

1:08:01

35% of race

Time at Slower Pace

32:17

17% of race

Average Pace: 7:20 /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 mi10:50:0022:457:1922:45
7:19
#8266
10K
6.21 mi11:11:4244:277:0921:42
6:59
#7452
15K
9.32 mi11:33:081:05:537:0421:26
6:54
#6900
20K
12.43 mi11:54:471:27:327:0321:39
6:58
#6609
Half
13.11 mi11:59:291:32:147:024:42
6:53
#6569
25K
15.53 mi12:16:431:49:287:0317:14
7:06
#6487
30K
18.64 mi12:40:142:12:597:0823:31
7:34
#6593
20M
20.00 mi12:51:012:23:467:1110:47
7:56
#6761
21M
21.00 mi12:59:462:32:317:168:45
8:45
#6940
35K
21.75 mi13:05:072:37:527:165:21
7:09
#6896
23M
23.00 mi13:14:582:47:437:189:51
7:52
#6947
24M
24.00 mi13:22:262:55:117:187:28
7:28
#6937
40K
24.85 mi13:28:593:01:447:196:33
7:40
#6939
25.2M
25.20 mi13:31:533:04:387:202:54
8:25
#6943
Finish
26.22 mi13:39:373:12:227:217:44
7:35
#6982
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8266111111115966(Top 22%)525(Top 5%)525(Top 11%)
10K6.21 mi3.10 mi7452+814843+268843+2686729(Top 25%)682(Top 6%)682(Top 14%)
15K9.32 mi3.11 mi6900+552711+132711+1325966(Top 22%)525(Top 5%)525(Top 11%)
20K12.43 mi3.11 mi6609+291661+50661+505802(Top 22%)485(Top 4%)485(Top 10%)
Half13.11 mi0.68 mi6569+40650+11650+115998(Top 23%)518(Top 5%)518(Top 11%)
25K15.53 mi2.42 mi6487+82637+13637+136176(Top 23%)602(Top 5%)602(Top 12%)
30K18.64 mi3.11 mi6593-106674-37674-377724(Top 29%)1189(Top 10%)1189(Top 24%)
20M20.00 mi1.36 mi6761-168732-58732-589799(Top 37%)2141(Top 19%)2141(Top 44%)
21M21.00 mi1.00 mi6940-179783-51783-5111966(Top 45%)3368(Top 29%)3368(Top 69%)
35K21.75 mi0.75 mi6896+447837836264(Top 24%)845(Top 7%)845(Top 17%)
23M23.00 mi1.25 mi6947-51828-45828-458870(Top 33%)1952(Top 17%)1952(Top 40%)
24M24.00 mi1.00 mi6937+10840-12840-127494(Top 28%)1477(Top 13%)1477(Top 30%)
40K24.85 mi0.85 mi6939-2859-19859-197728(Top 29%)1635(Top 14%)1635(Top 33%)
25.2M25.20 mi0.35 mi6943-4875-16875-168998(Top 34%)2224(Top 19%)2224(Top 46%)
Finish26.22 mi1.02 mi6982-39906-31906-319216(Top 35%)2325(Top 20%)2325(Top 48%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

5966

Females

525

F18-39

525

5K→10K

3.1 - 6.2 mi

Top 25%
×5stories
+79ft-138ft

Overall

6729

Females

682

F18-39

682

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

5966

Females

525

F18-39

525

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

5802

Females

485

F18-39

485

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

5998

Females

518

F18-39

518

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

6176

Females

602

F18-39

602

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

7724

Females

1189

F18-39

1189

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

9799

Females

2141

F18-39

2141

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

11966

Females

3368

F18-39

3368

21M→35K

21.0 - 21.8 mi

Top 24%
×7stories
+17ft-86ft

Overall

6264

Females

845

F18-39

845

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

8870

Females

1952

F18-39

1952

23M→24M

23.0 - 24.0 mi

Top 28%
×6stories
+12ft-82ft

Overall

7494

Females

1477

F18-39

1477

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7728

Females

1635

F18-39

1635

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

8998

Females

2224

F18-39

2224

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2stories
+22ft-21ft

Overall

9216

Females

2325

F18-39

2325

Passing Analysis

Category:
Athletes Passed
2297
Passed By
1013
Net Change
+1284
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8266
5K → 10K84127+814#8266#7452
10K → 15K56311+552#7452#6900
15K → 20K3009+291#6900#6609
20K → Half477+40#6609#6569
Half → 25K11836+82#6569#6487
25K → 30K85191-106#6487#6593
30K → 20M20188-168#6593#6761
20M → 21M22201-179#6761#6940
21M → 35K5814+44#6940#6896
35K → 23M60111-51#6896#6947
23M → 24M5444+10#6947#6937
24M → 40K5456-2#6937#6939
40K → 25.2M3236-4#6939#6943
25.2M → Finish4382-39#6943#6982
TOTALS22971013+1284
📊

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