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BOSTON MARATHON 2023

Rachel Gottlieb

Bib: 12920•F

MI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 30%
Gender (Female)
#0 / 11423
Top 11%
Division (F18-39)
#0 / 4884
Top 20%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:34
Rank: #10406
Start → 5K
23:34 | 7:35/mi
10K· 6.21 mi
46:52
Rank: #10412 (-6)
5K → 10K
23:18 | 7:30/mi
15K· 9.32 mi
1:10:11
Rank: #10326 (+86)
10K → 15K
23:19 | 7:30/mi
20K· 12.43 mi
1:33:22
Rank: #9944 (+382)
15K → 20K
23:11 | 7:28/mi
Half· 13.11 mi
1:38:22
Rank: #9881 (+63)
20K → Half
5:00 | 7:20/mi
25K· 15.53 mi
1:56:17
Rank: #9519 (+362)
Half → 25K
17:55 | 7:23/mi
30K· 18.64 mi
2:20:13
Rank: #9331 (+188)
25K → 30K
23:56 | 7:42/mi
20M
2:30:28
Rank: #9134 (+197)
30K → 20M
10:15 | 7:33/mi
21M
2:38:09
Rank: #8898 (+236)
20M → 21M
7:41 | 7:41/mi
35K· 21.75 mi
2:43:33
Rank: #8796 (+102)
21M → 35K
5:24 | 7:13/mi
23M
2:52:46
Rank: #8552 (+244)
35K → 23M
9:13 | 7:22/mi
24M
2:59:59
Rank: #8394 (+158)
23M → 24M
7:13 | 7:13/mi
40K· 24.85 mi
3:06:07
Rank: #8223 (+171)
24M → 40K
6:08 | 7:10/mi
25.2M
3:08:43
Rank: #8141 (+82)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
3:15:38
Rank: #7910 (+231)
25.2M → Finish
6:55 | 6:47/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:38:22
Pace7:30 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:37:16
Pace7:25 /mi
📊Negative Split: 1.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:5223:347:3523:34
7:35
-
10K
6.21 mi11:14:1046:527:3323:18
7:30
-0:05
15K
9.32 mi11:37:291:10:117:3223:19
7:30
0:00
20K
12.43 mi12:00:401:33:227:3123:11
7:28
-0:02
Half
13.11 mi12:05:401:38:227:305:00
7:20
-0:08
25K
15.53 mi12:23:351:56:177:2917:55
7:23
+0:03
30K
18.64 mi12:47:312:20:137:3123:56
7:42
+0:19
20M
20.00 mi12:57:462:30:287:3110:15
7:33
-0:09
21M
21.00 mi13:05:272:38:097:327:41
7:41
+0:08
35K
21.75 mi13:10:512:43:337:315:24
7:13
-0:28
23M
23.00 mi13:20:042:52:467:319:13
7:22
+0:09
24M
24.00 mi13:27:172:59:597:307:13
7:13
-0:09
40K
24.85 mi13:33:253:06:077:296:08
7:10
-0:03
25.2M
25.20 mi13:36:013:08:437:292:36
7:32
+0:22
Finish
26.22 mi13:42:563:15:387:286:55
6:47
-0:45

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

6:47 /mi

Average Pace

7:28 /mi

Slowest Pace

7:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

57:48

30% of race

Time at Steady Pace

2:17:50

70% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:28 /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 mi10:50:5223:347:3523:34
7:35
#10406
10K
6.21 mi11:14:1046:527:3323:18
7:30
#10412
15K
9.32 mi11:37:291:10:117:3223:19
7:30
#10326
20K
12.43 mi12:00:401:33:227:3123:11
7:28
#9944
Half
13.11 mi12:05:401:38:227:305:00
7:20
#9881
25K
15.53 mi12:23:351:56:177:2917:55
7:23
#9519
30K
18.64 mi12:47:312:20:137:3123:56
7:42
#9331
20M
20.00 mi12:57:462:30:287:3110:15
7:33
#9134
21M
21.00 mi13:05:272:38:097:327:41
7:41
#8898
35K
21.75 mi13:10:512:43:337:315:24
7:13
#8796
23M
23.00 mi13:20:042:52:467:319:13
7:22
#8552
24M
24.00 mi13:27:172:59:597:307:13
7:13
#8394
40K
24.85 mi13:33:253:06:077:296:08
7:10
#8223
25.2M
25.20 mi13:36:013:08:437:292:36
7:32
#8141
Finish
26.22 mi13:42:563:15:387:286:55
6:47
#7910
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi104062036203610218(Top 38%)1939(Top 17%)1939(Top 40%)
10K6.21 mi3.10 mi10412-62033+32033+310444(Top 39%)2021(Top 18%)2021(Top 41%)
15K9.32 mi3.11 mi10326+861969+641969+6410218(Top 38%)1939(Top 17%)1939(Top 40%)
20K12.43 mi3.11 mi9944+3821811+1581811+1589014(Top 34%)1488(Top 13%)1488(Top 30%)
Half13.11 mi0.68 mi9881+631780+311780+318863(Top 33%)1413(Top 12%)1413(Top 29%)
25K15.53 mi2.42 mi9519+3621656+1241656+1247954(Top 30%)1167(Top 10%)1167(Top 24%)
30K18.64 mi3.11 mi9331+1881619+371619+378668(Top 33%)1577(Top 14%)1577(Top 32%)
20M20.00 mi1.36 mi9134+1971559+601559+607114(Top 27%)1064(Top 9%)1064(Top 22%)
21M21.00 mi1.00 mi8898+2361484+751484+755564(Top 21%)692(Top 6%)692(Top 14%)
35K21.75 mi0.75 mi8796+1021453+311453+316684(Top 25%)986(Top 9%)986(Top 20%)
23M23.00 mi1.25 mi8552+2441392+611392+615675(Top 21%)713(Top 6%)713(Top 15%)
24M24.00 mi1.00 mi8394+1581351+411351+415874(Top 22%)854(Top 7%)854(Top 17%)
40K24.85 mi0.85 mi8223+1711308+431308+434785(Top 18%)589(Top 5%)589(Top 12%)
25.2M25.20 mi0.35 mi8141+821286+221286+224187(Top 16%)513(Top 4%)513(Top 11%)
Finish26.22 mi1.02 mi7910+2311224+621224+624035(Top 15%)471(Top 4%)471(Top 10%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10218

Females

1939

F18-39

1939

5K→10K

3.1 - 6.2 mi

Top 39%
×5stories
+79ft-138ft

Overall

10444

Females

2021

F18-39

2021

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10218

Females

1939

F18-39

1939

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

9014

Females

1488

F18-39

1488

20K→Half

12.4 - 13.1 mi

Top 33%
×2stories
+19ft-37ft

Overall

8863

Females

1413

F18-39

1413

Half→25K

13.1 - 15.5 mi

Top 30%
×4stories
+66ft-88ft

Overall

7954

Females

1167

F18-39

1167

25K→30K

15.5 - 18.6 mi

Top 33%
×9stories
+181ft-148ft

Overall

8668

Females

1577

F18-39

1577

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7114

Females

1064

F18-39

1064

20M→21M

20.0 - 21.0 mi

Top 21%
×8stories
+106ft-24ft

Overall

5564

Females

692

F18-39

692

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

6684

Females

986

F18-39

986

35K→23M

21.8 - 23.0 mi

Top 21%
×5stories
+23ft-63ft

Overall

5675

Females

713

F18-39

713

23M→24M

23.0 - 24.0 mi

Top 22%
×6stories
+12ft-82ft

Overall

5874

Females

854

F18-39

854

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4785

Females

589

F18-39

589

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4187

Females

513

F18-39

513

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2stories
+22ft-21ft

Overall

4035

Females

471

F18-39

471

Passing Analysis

Category:
Athletes Passed
3078*
Passed By
582
Net Change
+2496
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10406
5K → 10K285*291-6#10406#10412
10K → 15K231145+86#10412#10326
15K → 20K408*26+382#10326#9944
20K → Half729+63#9944#9881
Half → 25K3642+362#9881#9519
25K → 30K269*81+188#9519#9331
30K → 20M2058+197#9331#9134
20M → 21M2371+236#9134#8898
21M → 35K1086+102#8898#8796
35K → 23M2462+244#8796#8552
23M → 24M1657+158#8552#8394
24M → 40K1732+171#8394#8223
40K → 25.2M820+82#8223#8141
25.2M → Finish2332+231#8141#7910
TOTALS3078*582+2496

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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