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BOSTON MARATHON 2023

Molly Trachtenberg

Bib: 4981•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 17%
Gender (Female)
#0 / 11423
Top 3%
Division (F18-39)
#0 / 4884
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:33
Rank: #5853
Start → 5K
21:33 | 6:56/mi
10K· 6.21 mi
42:42
Rank: #5606 (+247)
5K → 10K
21:09 | 6:48/mi
15K· 9.32 mi
1:03:45
Rank: #5371 (+235)
10K → 15K
21:03 | 6:47/mi
20K· 12.43 mi
1:24:53
Rank: #5137 (+234)
15K → 20K
21:08 | 6:48/mi
Half· 13.11 mi
1:29:24
Rank: #5056 (+81)
20K → Half
4:31 | 6:37/mi
25K· 15.53 mi
1:45:49
Rank: #4820 (+236)
Half → 25K
16:25 | 6:46/mi
30K· 18.64 mi
2:07:09
Rank: #4496 (+324)
25K → 30K
21:20 | 6:52/mi
20M
2:16:28
Rank: #4360 (+136)
30K → 20M
9:19 | 6:51/mi
21M
2:23:50
Rank: #4308 (+52)
20M → 21M
7:22 | 7:22/mi
35K· 21.75 mi
2:28:55
Rank: #4289 (+19)
21M → 35K
5:05 | 6:48/mi
23M
2:38:04
Rank: #4374 (-85)
35K → 23M
9:09 | 7:18/mi
24M
2:45:04
Rank: #4398 (-24)
23M → 24M
7:00 | 7:00/mi
40K· 24.85 mi
2:51:11
Rank: #4409 (-11)
24M → 40K
6:07 | 7:09/mi
25.2M
2:53:51
Rank: #4406 (+3)
40K → 25.2M
2:40 | 7:44/mi
Finish· 26.22 mi
3:01:09
Rank: #4455 (-49)
25.2M → Finish
7:18 | 7:10/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:24
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:31:45
Pace7:00 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:3121:336:5621:33
6:56
-
10K
6.21 mi10:46:4042:426:5221:09
6:48
-0:08
15K
9.32 mi11:07:431:03:456:5021:03
6:47
-0:01
20K
12.43 mi11:28:511:24:536:5021:08
6:48
+0:01
Half
13.11 mi11:33:221:29:246:494:31
6:37
-0:11
25K
15.53 mi11:49:471:45:496:4916:25
6:46
+0:09
30K
18.64 mi12:11:072:07:096:4921:20
6:52
+0:06
20M
20.00 mi12:20:262:16:286:499:19
6:51
-0:01
21M
21.00 mi12:27:482:23:506:517:22
7:22
+0:31
35K
21.75 mi12:32:532:28:556:515:05
6:48
-0:34
23M
23.00 mi12:42:022:38:046:529:09
7:18
+0:30
24M
24.00 mi12:49:022:45:046:537:00
7:00
-0:18
40K
24.85 mi12:55:092:51:116:536:07
7:09
+0:09
25.2M
25.20 mi12:57:492:53:516:542:40
7:44
+0:35
Finish
26.22 mi13:05:073:01:096:557:18
7:10
-0:34

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

6:37 /mi

Average Pace

6:55 /mi

Slowest Pace

7:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:58

89% of race

Time at Steady Pace

19:11

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:55 /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 mi10:25:3121:336:5621:33
6:56
#5853
10K
6.21 mi10:46:4042:426:5221:09
6:48
#5606
15K
9.32 mi11:07:431:03:456:5021:03
6:47
#5371
20K
12.43 mi11:28:511:24:536:5021:08
6:48
#5137
Half
13.11 mi11:33:221:29:246:494:31
6:37
#5056
25K
15.53 mi11:49:471:45:496:4916:25
6:46
#4820
30K
18.64 mi12:11:072:07:096:4921:20
6:52
#4496
20M
20.00 mi12:20:262:16:286:499:19
6:51
#4360
21M
21.00 mi12:27:482:23:506:517:22
7:22
#4308
35K
21.75 mi12:32:532:28:556:515:05
6:48
#4289
23M
23.00 mi12:42:022:38:046:529:09
7:18
#4374
24M
24.00 mi12:49:022:45:046:537:00
7:00
#4398
40K
24.85 mi12:55:092:51:116:536:07
7:09
#4409
25.2M
25.20 mi12:57:492:53:516:542:40
7:44
#4406
Finish
26.22 mi13:05:073:01:096:557:18
7:10
#4455
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi58534774774897(Top 18%)340(Top 3%)340(Top 7%)
10K6.21 mi3.10 mi5606+247436+41436+415388(Top 20%)409(Top 4%)409(Top 8%)
15K9.32 mi3.11 mi5371+235398+38398+384897(Top 18%)340(Top 3%)340(Top 7%)
20K12.43 mi3.11 mi5137+234368+30368+304477(Top 17%)297(Top 3%)297(Top 6%)
Half13.11 mi0.68 mi5056+81355+13355+133687(Top 14%)206(Top 2%)206(Top 4%)
25K15.53 mi2.42 mi4820+236330+25330+253923(Top 15%)234(Top 2%)234(Top 5%)
30K18.64 mi3.11 mi4496+324291+39291+393452(Top 13%)205(Top 2%)205(Top 4%)
20M20.00 mi1.36 mi4360+136283+8283+83193(Top 12%)200(Top 2%)200(Top 4%)
21M21.00 mi1.00 mi4308+52277+6277+64006(Top 15%)312(Top 3%)312(Top 6%)
35K21.75 mi0.75 mi4289+19275+2275+24216(Top 16%)355(Top 3%)355(Top 7%)
23M23.00 mi1.25 mi4374-85284-9284-95366(Top 20%)623(Top 5%)623(Top 13%)
24M24.00 mi1.00 mi4398-24288-4288-44696(Top 18%)484(Top 4%)484(Top 10%)
40K24.85 mi0.85 mi4409-11292-4292-44665(Top 18%)547(Top 5%)547(Top 11%)
25.2M25.20 mi0.35 mi4406+3293-1293-15083(Top 19%)728(Top 6%)728(Top 15%)
Finish26.22 mi1.02 mi4455-49303-10303-106200(Top 23%)1124(Top 10%)1124(Top 23%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

4897

Females

340

F18-39

340

5K→10K

3.1 - 6.2 mi

Top 20%
×5stories
+79ft-138ft

Overall

5388

Females

409

F18-39

409

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

4897

Females

340

F18-39

340

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4477

Females

297

F18-39

297

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

3687

Females

206

F18-39

206

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

3923

Females

234

F18-39

234

25K→30K

15.5 - 18.6 mi

Top 13%
×9stories
+181ft-148ft

Overall

3452

Females

205

F18-39

205

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3193

Females

200

F18-39

200

20M→21M

20.0 - 21.0 mi

Top 15%
×8stories
+106ft-24ft

Overall

4006

Females

312

F18-39

312

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4216

Females

355

F18-39

355

35K→23M

21.8 - 23.0 mi

Top 20%
×5stories
+23ft-63ft

Overall

5366

Females

623

F18-39

623

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

4696

Females

484

F18-39

484

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4665

Females

547

F18-39

547

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5083

Females

728

F18-39

728

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6200

Females

1124

F18-39

1124

Passing Analysis

Category:
Athletes Passed
2018
Passed By
620
Net Change
+1398
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5853
5K → 10K355108+247#5853#5606
10K → 15K26631+235#5606#5371
15K → 20K25319+234#5371#5137
20K → Half854+81#5137#5056
Half → 25K2437+236#5056#4820
25K → 30K34319+324#4820#4496
30K → 20M15115+136#4496#4360
20M → 21M8937+52#4360#4308
21M → 35K4930+19#4308#4289
35K → 23M50135-85#4289#4374
23M → 24M4266-24#4374#4398
24M → 40K3748-11#4398#4409
40K → 25.2M2421+3#4409#4406
25.2M → Finish3180-49#4406#4455
TOTALS2018620+1398
📊

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