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BOSTON MARATHON 2023

Julieta Liebhoff

Bib: 18241•F

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 45%
Gender (Female)
#0 / 11423
Top 27%
Masters (Masters Women)
#0 / 6539
Top 14%
Division (F40-44)
#0 / 1878
Top 26%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:39
Rank: #13543
Start → 5K
24:39 | 7:56/mi
10K· 6.21 mi
49:01
Rank: #13494 (+49)
5K → 10K
24:22 | 7:51/mi
15K· 9.32 mi
1:13:23
Rank: #13353 (+141)
10K → 15K
24:22 | 7:51/mi
20K· 12.43 mi
1:38:16
Rank: #13387 (-34)
15K → 20K
24:53 | 8:01/mi
Half· 13.11 mi
1:43:39
Rank: #13374 (+13)
20K → Half
5:23 | 7:53/mi
25K· 15.53 mi
2:03:02
Rank: #13226 (+148)
Half → 25K
19:23 | 8:00/mi
30K· 18.64 mi
2:28:19
Rank: #12960 (+266)
25K → 30K
25:17 | 8:08/mi
20M
2:39:41
Rank: #12911 (+49)
30K → 20M
11:22 | 8:22/mi
21M
2:48:10
Rank: #12714 (+197)
20M → 21M
8:29 | 8:29/mi
35K· 21.75 mi
2:53:36
Rank: #12489 (+225)
21M → 35K
5:26 | 7:16/mi
23M
3:03:29
Rank: #12267 (+222)
35K → 23M
9:53 | 7:54/mi
24M
3:11:04
Rank: #12086 (+181)
23M → 24M
7:35 | 7:35/mi
40K· 24.85 mi
3:17:54
Rank: #11986 (+100)
24M → 40K
6:50 | 8:00/mi
25.2M
3:20:52
Rank: #11954 (+32)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:28:46
Rank: #11885 (+69)
25.2M → Finish
7:54 | 7:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:39
Pace7:54 /mi
2nd Half
Distance13.11 mi
Time1:45:07
Pace8:01 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:3524:397:5624:39
7:56
-
10K
6.21 mi11:39:5749:017:5324:22
7:51
-0:05
15K
9.32 mi12:04:191:13:237:5224:22
7:51
0:00
20K
12.43 mi12:29:121:38:167:5424:53
8:01
+0:10
Half
13.11 mi12:34:351:43:397:545:23
7:53
-0:08
25K
15.53 mi12:53:582:03:027:5519:23
8:00
+0:07
30K
18.64 mi13:19:152:28:197:5725:17
8:08
+0:08
20M
20.00 mi13:30:372:39:417:5911:22
8:22
+0:14
21M
21.00 mi13:39:062:48:108:008:29
8:29
+0:07
35K
21.75 mi13:44:322:53:367:595:26
7:16
-1:13
23M
23.00 mi13:54:253:03:297:599:53
7:54
+0:38
24M
24.00 mi14:02:003:11:047:587:35
7:35
-0:19
40K
24.85 mi14:08:503:17:547:586:50
8:00
+0:25
25.2M
25.20 mi14:11:483:20:527:582:58
8:36
+0:36
Finish
26.22 mi14:19:423:28:467:587:54
7:45
-0:51

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

7:16 /mi

Average Pace

7:58 /mi

Slowest Pace

8:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:34

52% of race

Time at Steady Pace

1:36:14

46% of race

Time at Slower Pace

2:58

1% of race

Average Pace: 7:58 /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 mi11:15:3524:397:5624:39
7:56
#13543
10K
6.21 mi11:39:5749:017:5324:22
7:51
#13494
15K
9.32 mi12:04:191:13:237:5224:22
7:51
#13353
20K
12.43 mi12:29:121:38:167:5424:53
8:01
#13387
Half
13.11 mi12:34:351:43:397:545:23
7:53
#13374
25K
15.53 mi12:53:582:03:027:5519:23
8:00
#13226
30K
18.64 mi13:19:152:28:197:5725:17
8:08
#12960
20M
20.00 mi13:30:372:39:417:5911:22
8:22
#12911
21M
21.00 mi13:39:062:48:108:008:29
8:29
#12714
35K
21.75 mi13:44:322:53:367:595:26
7:16
#12489
23M
23.00 mi13:54:253:03:297:599:53
7:54
#12267
24M
24.00 mi14:02:003:11:047:587:35
7:35
#12086
40K
24.85 mi14:08:503:17:547:586:50
8:00
#11986
25.2M
25.20 mi14:11:483:20:527:582:58
8:36
#11954
Finish
26.22 mi14:19:423:28:467:587:54
7:45
#11885
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi135433745374513077(Top 49%)3521(Top 31%)3521(Top 187%)
10K6.21 mi3.10 mi13494+493730+153730+1513494(Top 51%)3718(Top 33%)3718(Top 198%)
15K9.32 mi3.11 mi13353+1413664+663664+6613077(Top 49%)3521(Top 31%)3521(Top 187%)
20K12.43 mi3.11 mi13387-343713-493713-4913514(Top 51%)3822(Top 33%)3822(Top 204%)
Half13.11 mi0.68 mi13374+133708+53708+513519(Top 51%)3795(Top 33%)3795(Top 202%)
25K15.53 mi2.42 mi13226+1483633+753633+7512701(Top 48%)3466(Top 30%)3466(Top 185%)
30K18.64 mi3.11 mi12960+2663524+1093524+10911915(Top 45%)3137(Top 27%)3137(Top 167%)
20M20.00 mi1.36 mi12911+493520+43520+412791(Top 48%)3732(Top 33%)3732(Top 199%)
21M21.00 mi1.00 mi12714+1973422+983422+9810419(Top 39%)2590(Top 23%)2590(Top 138%)
35K21.75 mi0.75 mi12489+2253308+1143308+1146962(Top 26%)1103(Top 10%)1103(Top 59%)
23M23.00 mi1.25 mi12267+2223208+1003208+1009082(Top 34%)2084(Top 18%)2084(Top 111%)
24M24.00 mi1.00 mi12086+1813129+793129+798331(Top 31%)1823(Top 16%)1823(Top 97%)
40K24.85 mi0.85 mi11986+1003091+383091+3810037(Top 38%)2674(Top 23%)2674(Top 142%)
25.2M25.20 mi0.35 mi11954+323078+133078+1310239(Top 38%)2819(Top 25%)2819(Top 150%)
Finish26.22 mi1.02 mi11885+693058+203058+2010351(Top 39%)2868(Top 25%)2868(Top 153%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21stories
+97ft-345ft

Overall

13077

Females

3521

F40-44

3521

5K→10K

3.1 - 6.2 mi

Top 51%
×5stories
+79ft-138ft

Overall

13494

Females

3718

F40-44

3718

10K→15K

6.2 - 9.3 mi

Top 49%
×3stories
+67ft-78ft

Overall

13077

Females

3521

F40-44

3521

15K→20K

9.3 - 12.4 mi

Top 51%
×5stories
+106ft-86ft

Overall

13514

Females

3822

F40-44

3822

20K→Half

12.4 - 13.1 mi

Top 51%
×2stories
+19ft-37ft

Overall

13519

Females

3795

F40-44

3795

Half→25K

13.1 - 15.5 mi

Top 48%
×4stories
+66ft-88ft

Overall

12701

Females

3466

F40-44

3466

25K→30K

15.5 - 18.6 mi

Top 45%
×9stories
+181ft-148ft

Overall

11915

Females

3137

F40-44

3137

30K→20M

18.6 - 20.0 mi

Top 48%
×5stories
+64ft-50ft

Overall

12791

Females

3732

F40-44

3732

20M→21M

20.0 - 21.0 mi

Top 39%
×8stories
+106ft-24ft

Overall

10419

Females

2590

F40-44

2590

21M→35K

21.0 - 21.8 mi

Top 26%
×7stories
+17ft-86ft

Overall

6962

Females

1103

F40-44

1103

35K→23M

21.8 - 23.0 mi

Top 34%
×5stories
+23ft-63ft

Overall

9082

Females

2084

F40-44

2084

23M→24M

23.0 - 24.0 mi

Top 31%
×6stories
+12ft-82ft

Overall

8331

Females

1823

F40-44

1823

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10037

Females

2674

F40-44

2674

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10239

Females

2819

F40-44

2819

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2stories
+22ft-21ft

Overall

10351

Females

2868

F40-44

2868

Passing Analysis

Category:
Athletes Passed
2607
Passed By
949
Net Change
+1658
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13543
5K → 10K328279+49#13543#13494
10K → 15K279138+141#13494#13353
15K → 20K163197-34#13353#13387
20K → Half3825+13#13387#13374
Half → 25K21567+148#13374#13226
25K → 30K34074+266#13226#12960
30K → 20M11465+49#12960#12911
20M → 21M21720+197#12911#12714
21M → 35K2250+225#12714#12489
35K → 23M2308+222#12489#12267
23M → 24M1865+181#12267#12086
24M → 40K11919+100#12086#11986
40K → 25.2M4917+32#11986#11954
25.2M → Finish10435+69#11954#11885
TOTALS2607949+1658
📊

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