Boston Marathon logo
BOSTON MARATHON 2023

Jennifer Mcgowan

Bib: 12976•F

IL

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 24%
Gender (Female)
#0 / 11423
Top 6%
Division (F18-39)
#0 / 4884
Top 12%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:30
Rank: #10206
Start → 5K
23:30 | 7:34/mi
10K· 6.21 mi
45:38
Rank: #8759 (+1447)
5K → 10K
22:08 | 7:07/mi
15K· 9.32 mi
1:07:46
Rank: #8232 (+527)
10K → 15K
22:08 | 7:07/mi
20K· 12.43 mi
1:31:28
Rank: #8702 (-470)
15K → 20K
23:42 | 7:38/mi
Half· 13.11 mi
1:36:15
Rank: #8586 (+116)
20K → Half
4:47 | 7:01/mi
25K· 15.53 mi
1:53:23
Rank: #8063 (+523)
Half → 25K
17:08 | 7:04/mi
30K· 18.64 mi
2:15:41
Rank: #7482 (+581)
25K → 30K
22:18 | 7:11/mi
20M
2:25:22
Rank: #7245 (+237)
30K → 20M
9:41 | 7:08/mi
21M
2:32:54
Rank: #7055 (+190)
20M → 21M
7:32 | 7:32/mi
35K· 21.75 mi
2:38:14
Rank: #6993 (+62)
21M → 35K
5:20 | 7:08/mi
23M
2:47:24
Rank: #6857 (+136)
35K → 23M
9:10 | 7:19/mi
24M
2:54:34
Rank: #6780 (+77)
23M → 24M
7:10 | 7:10/mi
40K· 24.85 mi
3:00:32
Rank: #6611 (+169)
24M → 40K
5:58 | 6:59/mi
25.2M
3:03:07
Rank: #6551 (+60)
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
3:09:54
Rank: #6409 (+142)
25.2M → Finish
6:47 | 6:39/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 Half
Distance13.11 mi
Time1:36:15
Pace7:21 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:33:39
Pace7:09 /mi
📊Negative Split: 2.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:1623:307:3423:30
7:34
-
10K
6.21 mi11:13:2445:387:2122:08
7:07
-0:27
15K
9.32 mi11:35:321:07:467:1622:08
7:07
0:00
20K
12.43 mi11:59:141:31:287:2223:42
7:38
+0:31
Half
13.11 mi12:04:011:36:157:214:47
7:01
-0:37
25K
15.53 mi12:21:091:53:237:1817:08
7:04
+0:03
30K
18.64 mi12:43:272:15:417:1722:18
7:11
+0:07
20M
20.00 mi12:53:082:25:227:169:41
7:08
-0:03
21M
21.00 mi13:00:402:32:547:177:32
7:32
+0:24
35K
21.75 mi13:06:002:38:147:175:20
7:08
-0:24
23M
23.00 mi13:15:102:47:247:179:10
7:19
+0:11
24M
24.00 mi13:22:202:54:347:167:10
7:10
-0:09
40K
24.85 mi13:28:183:00:327:165:58
6:59
-0:11
25.2M
25.20 mi13:30:533:03:077:162:35
7:29
+0:30
Finish
26.22 mi13:37:403:09:547:156:47
6:39
-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

6:39 /mi

Average Pace

7:15 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:25

65% of race

Time at Steady Pace

1:06:29

35% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:15 /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 mi10:51:1623:307:3423:30
7:34
#10206
10K
6.21 mi11:13:2445:387:2122:08
7:07
#8759
15K
9.32 mi11:35:321:07:467:1622:08
7:07
#8232
20K
12.43 mi11:59:141:31:287:2223:42
7:38
#8702
Half
13.11 mi12:04:011:36:157:214:47
7:01
#8586
25K
15.53 mi12:21:091:53:237:1817:08
7:04
#8063
30K
18.64 mi12:43:272:15:417:1722:18
7:11
#7482
20M
20.00 mi12:53:082:25:227:169:41
7:08
#7245
21M
21.00 mi13:00:402:32:547:177:32
7:32
#7055
35K
21.75 mi13:06:002:38:147:175:20
7:08
#6993
23M
23.00 mi13:15:102:47:247:179:10
7:19
#6857
24M
24.00 mi13:22:202:54:347:167:10
7:10
#6780
40K
24.85 mi13:28:183:00:327:165:58
6:59
#6611
25.2M
25.20 mi13:30:533:03:077:162:35
7:29
#6551
Finish
26.22 mi13:37:403:09:547:156:47
6:39
#6409
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10206194919497322(Top 28%)838(Top 7%)838(Top 17%)
10K6.21 mi3.10 mi8759+14471308+6411308+6417592(Top 29%)912(Top 8%)912(Top 19%)
15K9.32 mi3.11 mi8232+5271123+1851123+1857322(Top 28%)838(Top 7%)838(Top 17%)
20K12.43 mi3.11 mi8702-4701314-1911314-19110305(Top 39%)2047(Top 18%)2047(Top 42%)
Half13.11 mi0.68 mi8586+1161269+451269+456660(Top 25%)672(Top 6%)672(Top 14%)
25K15.53 mi2.42 mi8063+5231096+1731096+1735958(Top 22%)542(Top 5%)542(Top 11%)
30K18.64 mi3.11 mi7482+581929+167929+1675378(Top 20%)474(Top 4%)474(Top 10%)
20M20.00 mi1.36 mi7245+237861+68861+684767(Top 18%)416(Top 4%)416(Top 9%)
21M21.00 mi1.00 mi7055+190812+49812+494770(Top 18%)463(Top 4%)463(Top 9%)
35K21.75 mi0.75 mi6993+62804+8804+86124(Top 23%)795(Top 7%)795(Top 16%)
23M23.00 mi1.25 mi6857+136791+13791+135450(Top 20%)649(Top 6%)649(Top 13%)
24M24.00 mi1.00 mi6780+77788+3788+35584(Top 21%)743(Top 7%)743(Top 15%)
40K24.85 mi0.85 mi6611+169762+26762+263767(Top 14%)371(Top 3%)371(Top 8%)
25.2M25.20 mi0.35 mi6551+60748+14748+143943(Top 15%)432(Top 4%)432(Top 9%)
Finish26.22 mi1.02 mi6409+142715+33715+333310(Top 12%)333(Top 3%)333(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21stories
+97ft-345ft

Overall

7322

Females

838

F18-39

838

5K→10K

3.1 - 6.2 mi

Top 29%
×5stories
+79ft-138ft

Overall

7592

Females

912

F18-39

912

10K→15K

6.2 - 9.3 mi

Top 28%
×3stories
+67ft-78ft

Overall

7322

Females

838

F18-39

838

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

10305

Females

2047

F18-39

2047

20K→Half

12.4 - 13.1 mi

Top 25%
×2stories
+19ft-37ft

Overall

6660

Females

672

F18-39

672

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

5958

Females

542

F18-39

542

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5378

Females

474

F18-39

474

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

4767

Females

416

F18-39

416

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

4770

Females

463

F18-39

463

21M→35K

21.0 - 21.8 mi

Top 23%
×7stories
+17ft-86ft

Overall

6124

Females

795

F18-39

795

35K→23M

21.8 - 23.0 mi

Top 20%
×5stories
+23ft-63ft

Overall

5450

Females

649

F18-39

649

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5584

Females

743

F18-39

743

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3767

Females

371

F18-39

371

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

3943

Females

432

F18-39

432

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3310

Females

333

F18-39

333

Passing Analysis

Category:
Athletes Passed
4389*
Passed By
592
Net Change
+3797
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10206
5K → 10K1466*19+1447#10206#8759
10K → 15K53710+527#8759#8232
15K → 20K33503-470#8232#8702
20K → Half1182+116#8702#8586
Half → 25K5230+523#8586#8063
25K → 30K5810+581#8063#7482
30K → 20M2381+237#7482#7245
20M → 21M1933+190#7245#7055
21M → 35K7210+62#7055#6993
35K → 23M14610+136#6993#6857
23M → 24M10023+77#6857#6780
24M → 40K1701+169#6780#6611
40K → 25.2M655+60#6611#6551
25.2M → Finish1475+142#6551#6409
TOTALS4389*592+3797

* 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