Boston Marathon logo
BOSTON MARATHON 2023

Molly Egan

Bib: 29877•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
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
24:40
Rank: #13601
Start → 5K
24:40 | 7:56/mi
10K· 6.21 mi
47:34
Rank: #11403 (+2198)
5K → 10K
22:54 | 7:22/mi
15K· 9.32 mi
1:10:37
Rank: #10741 (+662)
10K → 15K
23:03 | 7:25/mi
20K· 12.43 mi
1:33:42
Rank: #10194 (+547)
15K → 20K
23:05 | 7:26/mi
Half· 13.11 mi
1:38:39
Rank: #10058 (+136)
20K → Half
4:57 | 7:15/mi
25K· 15.53 mi
1:57:00
Rank: #9906 (+152)
Half → 25K
18:21 | 7:34/mi
30K· 18.64 mi
2:21:08
Rank: #9749 (+157)
25K → 30K
24:08 | 7:46/mi
20M
2:31:45
Rank: #9650 (+99)
30K → 20M
10:37 | 7:49/mi
21M
2:39:56
Rank: #9558 (+92)
20M → 21M
8:11 | 8:11/mi
35K· 21.75 mi
2:45:31
Rank: #9500 (+58)
21M → 35K
5:35 | 7:28/mi
23M
2:55:32
Rank: #9469 (+31)
35K → 23M
10:01 | 8:00/mi
24M
3:03:25
Rank: #9504 (-35)
23M → 24M
7:53 | 7:53/mi
40K· 24.85 mi
3:10:35
Rank: #9571 (-67)
24M → 40K
7:10 | 8:23/mi
25.2M
3:14:30
Rank: #9873 (-302)
40K → 25.2M
3:55 | 11:21/mi
Finish· 26.22 mi
3:49:00
Rank: #17109 (-7236)
25.2M → Finish
34:30 | 33:51/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:39
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time2:10:21
Pace9:57 /mi
📊Positive Split: 32.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:0724:407:5624:40
7:56
-
10K
6.21 mi12:06:0147:347:3922:54
7:22
-0:34
15K
9.32 mi12:29:041:10:377:3523:03
7:25
+0:03
20K
12.43 mi12:52:091:33:427:3223:05
7:26
+0:01
Half
13.11 mi12:57:061:38:397:314:57
7:15
-0:11
25K
15.53 mi13:15:271:57:007:3218:21
7:34
+0:19
30K
18.64 mi13:39:352:21:087:3424:08
7:46
+0:12
20M
20.00 mi13:50:122:31:457:3510:37
7:49
+0:03
21M
21.00 mi13:58:232:39:567:378:11
8:11
+0:22
35K
21.75 mi14:03:582:45:317:375:35
7:28
-0:43
23M
23.00 mi14:13:592:55:327:3810:01
8:00
+0:32
24M
24.00 mi14:21:523:03:257:397:53
7:53
-0:07
40K
24.85 mi14:29:023:10:357:407:10
8:23
+0:30
25.2M
25.20 mi14:32:573:14:307:433:55
11:21
+2:58
Finish
26.22 mi15:07:273:49:008:4434:30
33:51
+22:30

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

7:15 /mi

Average Pace

8:44 /mi

Slowest Pace

33:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:10:35

83% of race

Time at Slower Pace

38:25

17% of race

Average Pace: 8:44 /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 mi11:43:0724:407:5624:40
7:56
#13601
10K
6.21 mi12:06:0147:347:3922:54
7:22
#11403
15K
9.32 mi12:29:041:10:377:3523:03
7:25
#10741
20K
12.43 mi12:52:091:33:427:3223:05
7:26
#10194
Half
13.11 mi12:57:061:38:397:314:57
7:15
#10058
25K
15.53 mi13:15:271:57:007:3218:21
7:34
#9906
30K
18.64 mi13:39:352:21:087:3424:08
7:46
#9749
20M
20.00 mi13:50:122:31:457:3510:37
7:49
#9650
21M
21.00 mi13:58:232:39:567:378:11
8:11
#9558
35K
21.75 mi14:03:582:45:317:375:35
7:28
#9500
23M
23.00 mi14:13:592:55:327:3810:01
8:00
#9469
24M
24.00 mi14:21:523:03:257:397:53
7:53
#9504
40K
24.85 mi14:29:023:10:357:407:10
8:23
#9571
25.2M
25.20 mi14:32:573:14:307:433:55
11:21
#9873
Finish
26.22 mi15:07:273:49:008:4434:30
33:51
#17109
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi13601378437849534(Top 36%)1640(Top 14%)1640(Top 34%)
10K6.21 mi3.10 mi11403+21982550+12342550+12349413(Top 35%)1596(Top 14%)1596(Top 33%)
15K9.32 mi3.11 mi10741+6622199+3512199+3519534(Top 36%)1640(Top 14%)1640(Top 34%)
20K12.43 mi3.11 mi10194+5471924+2751924+2758767(Top 33%)1404(Top 12%)1404(Top 29%)
Half13.11 mi0.68 mi10058+1361863+611863+618343(Top 31%)1248(Top 11%)1248(Top 26%)
25K15.53 mi2.42 mi9906+1521814+491814+499327(Top 35%)1699(Top 15%)1699(Top 35%)
30K18.64 mi3.11 mi9749+1571782+321782+329139(Top 34%)1777(Top 16%)1777(Top 36%)
20M20.00 mi1.36 mi9650+991774+81774+89006(Top 34%)1811(Top 16%)1811(Top 37%)
21M21.00 mi1.00 mi9558+921753+211753+218564(Top 32%)1752(Top 15%)1752(Top 36%)
35K21.75 mi0.75 mi9500+581750+31750+38355(Top 31%)1657(Top 15%)1657(Top 34%)
23M23.00 mi1.25 mi9469+311752-21752-29795(Top 37%)2422(Top 21%)2422(Top 50%)
24M24.00 mi1.00 mi9504-351797-451797-4510465(Top 39%)2831(Top 25%)2831(Top 58%)
40K24.85 mi0.85 mi9571-671855-581855-5812656(Top 48%)4048(Top 35%)4048(Top 83%)
25.2M25.20 mi0.35 mi9873-3022016-1612016-16121258(Top 80%)8721(Top 76%)8721(Top 179%)
Finish26.22 mi1.02 mi17109-72366135-41196135-411926622(Top 100%)11423(Top 100%)11423(Top 234%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21stories
+97ft-345ft

Overall

9534

Females

1640

F18-39

1640

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

9413

Females

1596

F18-39

1596

10K→15K

6.2 - 9.3 mi

Top 36%
×3stories
+67ft-78ft

Overall

9534

Females

1640

F18-39

1640

15K→20K

9.3 - 12.4 mi

Top 33%
×5stories
+106ft-86ft

Overall

8767

Females

1404

F18-39

1404

20K→Half

12.4 - 13.1 mi

Top 31%
×2stories
+19ft-37ft

Overall

8343

Females

1248

F18-39

1248

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9327

Females

1699

F18-39

1699

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9139

Females

1777

F18-39

1777

30K→20M

18.6 - 20.0 mi

Top 34%
×5stories
+64ft-50ft

Overall

9006

Females

1811

F18-39

1811

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

8564

Females

1752

F18-39

1752

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8355

Females

1657

F18-39

1657

35K→23M

21.8 - 23.0 mi

Top 37%
×5stories
+23ft-63ft

Overall

9795

Females

2422

F18-39

2422

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

10465

Females

2831

F18-39

2831

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12656

Females

4048

F18-39

4048

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21258

Females

8721

F18-39

8721

25.2M→Finish

25.2 - 26.2 mi

Top 100%
×2stories
+22ft-21ft

Overall

26622

Females

11423

F18-39

11423

Passing Analysis

Category:
Athletes Passed
4543*
Passed By
8050
Net Change
-3508
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13601
5K → 10K220810+2198#13601#11403
10K → 15K67917+662#11403#10741
15K → 20K553*6+547#10741#10194
20K → Half137*1+136#10194#10058
Half → 25K195*43+152#10058#9906
25K → 30K238*81+157#9906#9749
30K → 20M13738+99#9749#9650
20M → 21M12129+92#9650#9558
21M → 35K7618+58#9558#9500
35K → 23M9867+31#9500#9469
23M → 24M5994-35#9469#9504
24M → 40K36*103-67#9504#9571
40K → 25.2M6308-302#9571#9873
25.2M → Finish07235-7236#9873#17109
TOTALS4543*8050-3508

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

📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing