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BOSTON MARATHON 2023

Erin Endres

Bib: 25848•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 43%
Gender (Female)
#0 / 11423
Top 25%
Division (F18-39)
#0 / 4884
Top 41%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:43
Rank: #10875
Start → 5K
23:43 | 7:38/mi
10K· 6.21 mi
48:11
Rank: #12321 (-1446)
5K → 10K
24:28 | 7:53/mi
15K· 9.32 mi
1:12:55
Rank: #12910 (-589)
10K → 15K
24:44 | 7:58/mi
20K· 12.43 mi
1:37:25
Rank: #12760 (+150)
15K → 20K
24:30 | 7:53/mi
Half· 13.11 mi
1:42:45
Rank: #12755 (+5)
20K → Half
5:20 | 7:49/mi
25K· 15.53 mi
2:01:58
Rank: #12609 (+146)
Half → 25K
19:13 | 7:56/mi
30K· 18.64 mi
2:26:47
Rank: #12250 (+359)
25K → 30K
24:49 | 7:59/mi
20M
2:37:30
Rank: #12006 (+244)
30K → 20M
10:43 | 7:53/mi
21M
2:46:00
Rank: #11910 (+96)
20M → 21M
8:30 | 8:30/mi
35K· 21.75 mi
2:51:37
Rank: #11781 (+129)
21M → 35K
5:37 | 7:30/mi
23M
3:01:38
Rank: #11626 (+155)
35K → 23M
10:01 | 8:00/mi
24M
3:09:30
Rank: #11553 (+73)
23M → 24M
7:52 | 7:52/mi
40K· 24.85 mi
3:16:27
Rank: #11523 (+30)
24M → 40K
6:57 | 8:08/mi
25.2M
3:19:29
Rank: #11500 (+23)
40K → 25.2M
3:02 | 8:48/mi
Finish· 26.22 mi
3:27:24
Rank: #11429 (+71)
25.2M → Finish
7:55 | 7:46/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:45
Pace7:50 /mi
2nd Half
Distance13.11 mi
Time1:44:39
Pace7:59 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:5023:437:3823:43
7:38
-
10K
6.21 mi12:06:1848:117:4524:28
7:53
+0:15
15K
9.32 mi12:31:021:12:557:4924:44
7:58
+0:05
20K
12.43 mi12:55:321:37:257:5024:30
7:53
-0:05
Half
13.11 mi13:00:521:42:457:505:20
7:49
-0:04
25K
15.53 mi13:20:052:01:587:5119:13
7:56
+0:07
30K
18.64 mi13:44:542:26:477:5224:49
7:59
+0:03
20M
20.00 mi13:55:372:37:307:5210:43
7:53
-0:06
21M
21.00 mi14:04:072:46:007:548:30
8:30
+0:37
35K
21.75 mi14:09:442:51:377:535:37
7:30
-1:00
23M
23.00 mi14:19:453:01:387:5410:01
8:00
+0:30
24M
24.00 mi14:27:373:09:307:547:52
7:52
-0:08
40K
24.85 mi14:34:343:16:277:546:57
8:08
+0:16
25.2M
25.20 mi14:37:363:19:297:553:02
8:48
+0:40
Finish
26.22 mi14:45:313:27:247:557:55
7:46
-1:02

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

7:30 /mi

Average Pace

7:55 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:52

94% of race

Time at Steady Pace

11:32

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:55 /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 mi11:41:5023:437:3823:43
7:38
#10875
10K
6.21 mi12:06:1848:117:4524:28
7:53
#12321
15K
9.32 mi12:31:021:12:557:4924:44
7:58
#12910
20K
12.43 mi12:55:321:37:257:5024:30
7:53
#12760
Half
13.11 mi13:00:521:42:457:505:20
7:49
#12755
25K
15.53 mi13:20:052:01:587:5119:13
7:56
#12609
30K
18.64 mi13:44:542:26:477:5224:49
7:59
#12250
20M
20.00 mi13:55:372:37:307:5210:43
7:53
#12006
21M
21.00 mi14:04:072:46:007:548:30
8:30
#11910
35K
21.75 mi14:09:442:51:377:535:37
7:30
#11781
23M
23.00 mi14:19:453:01:387:5410:01
8:00
#11626
24M
24.00 mi14:27:373:09:307:547:52
7:52
#11553
40K
24.85 mi14:34:343:16:277:546:57
8:08
#11523
25.2M
25.20 mi14:37:363:19:297:553:02
8:48
#11500
Finish
26.22 mi14:45:313:27:247:557:55
7:46
#11429
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi108752271227114074(Top 53%)4124(Top 36%)4124(Top 84%)
10K6.21 mi3.10 mi12321-14463051-7803051-78013767(Top 52%)3897(Top 34%)3897(Top 80%)
15K9.32 mi3.11 mi12910-5893404-3533404-35314074(Top 53%)4124(Top 36%)4124(Top 84%)
20K12.43 mi3.11 mi12760+1503340+643340+6412499(Top 47%)3253(Top 28%)3253(Top 67%)
Half13.11 mi0.68 mi12755+53339+13339+112879(Top 48%)3408(Top 30%)3408(Top 70%)
25K15.53 mi2.42 mi12609+1463285+543285+5412110(Top 45%)3137(Top 27%)3137(Top 64%)
30K18.64 mi3.11 mi12250+3593125+1603125+16010814(Top 41%)2552(Top 22%)2552(Top 52%)
20M20.00 mi1.36 mi12006+2443003+1223003+1229502(Top 36%)2028(Top 18%)2028(Top 42%)
21M21.00 mi1.00 mi11910+962958+452958+4510511(Top 39%)2632(Top 23%)2632(Top 54%)
35K21.75 mi0.75 mi11781+1292903+552903+558647(Top 32%)1766(Top 15%)1766(Top 36%)
23M23.00 mi1.25 mi11626+1552838+652838+659773(Top 37%)2400(Top 21%)2400(Top 49%)
24M24.00 mi1.00 mi11553+732817+212817+2110301(Top 39%)2733(Top 24%)2733(Top 56%)
40K24.85 mi0.85 mi11523+302827-102827-1010915(Top 41%)3101(Top 27%)3101(Top 63%)
25.2M25.20 mi0.35 mi11500+232824+32824+311360(Top 43%)3372(Top 30%)3372(Top 69%)
Finish26.22 mi1.02 mi11429+712810+142810+1410475(Top 39%)2928(Top 26%)2928(Top 60%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

14074

Females

4124

F18-39

4124

5K→10K

3.1 - 6.2 mi

Top 52%
×5stories
+79ft-138ft

Overall

13767

Females

3897

F18-39

3897

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

14074

Females

4124

F18-39

4124

15K→20K

9.3 - 12.4 mi

Top 47%
×5stories
+106ft-86ft

Overall

12499

Females

3253

F18-39

3253

20K→Half

12.4 - 13.1 mi

Top 48%
×2stories
+19ft-37ft

Overall

12879

Females

3408

F18-39

3408

Half→25K

13.1 - 15.5 mi

Top 45%
×4stories
+66ft-88ft

Overall

12110

Females

3137

F18-39

3137

25K→30K

15.5 - 18.6 mi

Top 41%
×9stories
+181ft-148ft

Overall

10814

Females

2552

F18-39

2552

30K→20M

18.6 - 20.0 mi

Top 36%
×5stories
+64ft-50ft

Overall

9502

Females

2028

F18-39

2028

20M→21M

20.0 - 21.0 mi

Top 39%
×8stories
+106ft-24ft

Overall

10511

Females

2632

F18-39

2632

21M→35K

21.0 - 21.8 mi

Top 32%
×7stories
+17ft-86ft

Overall

8647

Females

1766

F18-39

1766

35K→23M

21.8 - 23.0 mi

Top 37%
×5stories
+23ft-63ft

Overall

9773

Females

2400

F18-39

2400

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

10301

Females

2733

F18-39

2733

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

10915

Females

3101

F18-39

3101

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11360

Females

3372

F18-39

3372

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2stories
+22ft-21ft

Overall

10475

Females

2928

F18-39

2928

Passing Analysis

Category:
Athletes Passed
2031
Passed By
2585
Net Change
-554
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10875
5K → 10K301476-1446#10875#12321
10K → 15K49638-589#12321#12910
15K → 20K267117+150#12910#12760
20K → Half3833+5#12760#12755
Half → 25K21165+146#12755#12609
25K → 30K40445+359#12609#12250
30K → 20M2517+244#12250#12006
20M → 21M13943+96#12006#11910
21M → 35K1312+129#11910#11781
35K → 23M18227+155#11781#11626
23M → 24M10027+73#11626#11553
24M → 40K8050+30#11553#11523
40K → 25.2M3916+23#11523#11500
25.2M → Finish11039+71#11500#11429
TOTALS20312585-554
📊

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