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BOSTON MARATHON 2023

Erin Bortz

Bib: 17113•F

NJ

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 40%
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
26:00
Rank: #16646
Start → 5K
8:22/mi
26:00 split
10K· 6.21 mi
51:47
Rank: #16738 (-92)
5K → 10K
8:18/mi
25:47 split
15K· 9.32 mi
1:17:21
Rank: #16507 (+231)
10K → 15K
8:14/mi
25:34 split
20K· 12.43 mi
1:43:16
Rank: #16355 (+152)
15K → 20K
8:21/mi
25:55 split
Half· 13.11 mi
1:48:47
Rank: #16264 (+91)
20K → Half
8:05/mi
5:31 split
25K· 15.53 mi
2:08:58
Rank: #16044 (+220)
Half → 25K
8:19/mi
20:11 split
30K· 18.64 mi
2:34:48
Rank: #15507 (+537)
25K → 30K
8:19/mi
25:50 split
20M
2:46:10
Rank: #15296 (+211)
30K → 20M
8:22/mi
11:22 split
21M
2:55:01
Rank: #15111 (+185)
20M → 21M
8:51/mi
8:51 split
35K· 21.75 mi
3:01:07
Rank: #15035 (+76)
21M → 35K
8:09/mi
6:06 split
23M
3:11:34
Rank: #14856 (+179)
35K → 23M
8:21/mi
10:27 split
24M
3:19:40
Rank: #14716 (+140)
23M → 24M
8:06/mi
8:06 split
40K· 24.85 mi
3:26:59
Rank: #14658 (+58)
24M → 40K
8:33/mi
7:19 split
25.2M
3:30:06
Rank: #14612 (+46)
40K → 25.2M
9:02/mi
3:07 split
Finish· 26.22 mi
3:38:27
Rank: #14545 (+67)
25.2M → Finish
8:12/mi
8:21 split

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:48:47
Pace8:18 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:49:40
Pace8:22 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:2926:008:2226:00
8:22
-
10K
6.21 mi11:45:1651:478:2025:47
8:18
-0:04
15K
9.32 mi12:10:501:17:218:1825:34
8:14
-0:04
20K
12.43 mi12:36:451:43:168:1925:55
8:21
+0:07
Half
13.11 mi12:42:161:48:478:185:31
8:05
-0:16
25K
15.53 mi13:02:272:08:588:1820:11
8:19
+0:14
30K
18.64 mi13:28:172:34:488:1825:50
8:19
0:00
20M
20.00 mi13:39:392:46:108:1811:22
8:22
+0:03
21M
21.00 mi13:48:302:55:018:208:51
8:51
+0:29
35K
21.75 mi13:54:363:01:078:206:06
8:09
-0:42
23M
23.00 mi14:05:033:11:348:2010:27
8:21
+0:12
24M
24.00 mi14:13:093:19:408:198:06
8:06
-0:15
40K
24.85 mi14:20:283:26:598:207:19
8:33
+0:27
25.2M
25.20 mi14:23:353:30:068:203:07
9:02
+0:29
Finish
26.22 mi14:31:563:38:278:208:21
8:12
-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

8:05 /mi

Average Pace

8:20 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:35:20

99% of race

Time at Steady Pace

3:07

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:20 /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 mi11:19:2926:008:2226:00
8:22
#16646
10K
6.21 mi11:45:1651:478:2025:47
8:18
#16738
15K
9.32 mi12:10:501:17:218:1825:34
8:14
#16507
20K
12.43 mi12:36:451:43:168:1925:55
8:21
#16355
Half
13.11 mi12:42:161:48:478:185:31
8:05
#16264
25K
15.53 mi13:02:272:08:588:1820:11
8:19
#16044
30K
18.64 mi13:28:172:34:488:1825:50
8:19
#15507
20M
20.00 mi13:39:392:46:108:1811:22
8:22
#15296
21M
21.00 mi13:48:302:55:018:208:51
8:51
#15111
35K
21.75 mi13:54:363:01:078:206:06
8:09
#15035
23M
23.00 mi14:05:033:11:348:2010:27
8:21
#14856
24M
24.00 mi14:13:093:19:408:198:06
8:06
#14716
40K
24.85 mi14:20:283:26:598:207:19
8:33
#14658
25.2M
25.20 mi14:23:353:30:068:203:07
9:02
#14612
Finish
26.22 mi14:31:563:38:278:208:21
8:12
#14545
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi166465694569416073(Top 60%)5332(Top 47%)5332(Top 109%)
10K6.21 mi3.10 mi16738-925736-425736-4216921(Top 64%)5821(Top 51%)5821(Top 119%)
15K9.32 mi3.11 mi16507+2315598+1385598+13816073(Top 60%)5332(Top 47%)5332(Top 109%)
20K12.43 mi3.11 mi16355+1525524+745524+7415890(Top 60%)5279(Top 46%)5279(Top 108%)
Half13.11 mi0.68 mi16264+915465+595465+5915088(Top 57%)4733(Top 41%)4733(Top 97%)
25K15.53 mi2.42 mi16044+2205362+1035362+10315105(Top 57%)4910(Top 43%)4910(Top 101%)
30K18.64 mi3.11 mi15507+5375079+2835079+28313126(Top 49%)3830(Top 34%)3830(Top 78%)
20M20.00 mi1.36 mi15296+2114964+1154964+11512827(Top 48%)3768(Top 33%)3768(Top 77%)
21M21.00 mi1.00 mi15111+1854869+954869+9512580(Top 47%)3734(Top 33%)3734(Top 76%)
35K21.75 mi0.75 mi15035+764836+334836+3313204(Top 50%)4125(Top 36%)4125(Top 84%)
23M23.00 mi1.25 mi14856+1794747+894747+8912260(Top 46%)3671(Top 32%)3671(Top 75%)
24M24.00 mi1.00 mi14716+1404686+614686+6111985(Top 45%)3586(Top 31%)3586(Top 73%)
40K24.85 mi0.85 mi14658+584679+74679+713731(Top 52%)4598(Top 40%)4598(Top 94%)
25.2M25.20 mi0.35 mi14612+464657+224657+2212816(Top 48%)4149(Top 36%)4149(Top 85%)
Finish26.22 mi1.02 mi14545+674625+324625+3213419(Top 50%)4423(Top 39%)4423(Top 91%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21stories
+97ft-345ft

Overall

16073

Females

5332

F18-39

5332

5K→10K

3.1 - 6.2 mi

Top 64%
×5stories
+79ft-138ft

Overall

16921

Females

5821

F18-39

5821

10K→15K

6.2 - 9.3 mi

Top 60%
×3stories
+67ft-78ft

Overall

16073

Females

5332

F18-39

5332

15K→20K

9.3 - 12.4 mi

Top 60%
×5stories
+106ft-86ft

Overall

15890

Females

5279

F18-39

5279

20K→Half

12.4 - 13.1 mi

Top 57%
×2stories
+19ft-37ft

Overall

15088

Females

4733

F18-39

4733

Half→25K

13.1 - 15.5 mi

Top 57%
×4stories
+66ft-88ft

Overall

15105

Females

4910

F18-39

4910

25K→30K

15.5 - 18.6 mi

Top 49%
×9stories
+181ft-148ft

Overall

13126

Females

3830

F18-39

3830

30K→20M

18.6 - 20.0 mi

Top 48%
×5stories
+64ft-50ft

Overall

12827

Females

3768

F18-39

3768

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

12580

Females

3734

F18-39

3734

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

13204

Females

4125

F18-39

4125

35K→23M

21.8 - 23.0 mi

Top 46%
×5stories
+23ft-63ft

Overall

12260

Females

3671

F18-39

3671

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

11985

Females

3586

F18-39

3586

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13731

Females

4598

F18-39

4598

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

12816

Females

4149

F18-39

4149

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

13419

Females

4423

F18-39

4423

Passing Analysis

Category:
Athletes Passed
2844
Passed By
743
Net Change
+2101
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16646
5K → 10K268360-92#16646#16738
10K → 15K345114+231#16738#16507
15K → 20K24391+152#16507#16355
20K → Half965+91#16355#16264
Half → 25K26343+220#16264#16044
25K → 30K55215+537#16044#15507
30K → 20M22110+211#15507#15296
20M → 21M19510+185#15296#15111
21M → 35K9115+76#15111#15035
35K → 23M1889+179#15035#14856
23M → 24M1444+140#14856#14716
24M → 40K9032+58#14716#14658
40K → 25.2M548+46#14658#14612
25.2M → Finish9427+67#14612#14545
TOTALS2844743+2101
📊

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