Boston Marathon logo
BOSTON MARATHON 2023

Madison Hirsch

Bib: 8957•F

CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 13%
Gender (Female)
#0 / 11423
Top 2%
Division (F18-39)
#0 / 4884
Top 3%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:52
Rank: #3835
Start → 5K
20:52 | 6:43/mi
10K· 6.21 mi
41:41
Rank: #4074 (-239)
5K → 10K
20:49 | 6:42/mi
15K· 9.32 mi
1:02:30
Rank: #4073 (+1)
10K → 15K
20:49 | 6:42/mi
20K· 12.43 mi
1:23:32
Rank: #4089 (-16)
15K → 20K
21:02 | 6:46/mi
Half· 13.11 mi
1:28:06
Rank: #4095 (-6)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:44:36
Rank: #4083 (+12)
Half → 25K
16:30 | 6:48/mi
30K· 18.64 mi
2:05:58
Rank: #3929 (+154)
25K → 30K
21:22 | 6:53/mi
20M
2:15:18
Rank: #3827 (+102)
30K → 20M
9:20 | 6:52/mi
21M
2:22:30
Rank: #3744 (+83)
20M → 21M
7:12 | 7:12/mi
35K· 21.75 mi
2:27:29
Rank: #3707 (+37)
21M → 35K
4:59 | 6:40/mi
23M
2:36:07
Rank: #3632 (+75)
35K → 23M
8:38 | 6:54/mi
24M
2:42:49
Rank: #3591 (+41)
23M → 24M
6:42 | 6:42/mi
40K· 24.85 mi
2:48:46
Rank: #3569 (+22)
24M → 40K
5:57 | 6:58/mi
25.2M
2:51:19
Rank: #3553 (+16)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
2:57:52
Rank: #3449 (+104)
25.2M → Finish
6:33 | 6:26/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
Time1:28:06
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:29:46
Pace6:51 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:0720:526:4320:52
6:43
-
10K
6.21 mi11:06:5641:416:4220:49
6:42
-0:01
15K
9.32 mi11:27:451:02:306:4220:49
6:42
0:00
20K
12.43 mi11:48:471:23:326:4321:02
6:46
+0:04
Half
13.11 mi11:53:211:28:066:434:34
6:42
-0:04
25K
15.53 mi12:09:511:44:366:4416:30
6:48
+0:06
30K
18.64 mi12:31:132:05:586:4521:22
6:53
+0:05
20M
20.00 mi12:40:332:15:186:469:20
6:52
-0:01
21M
21.00 mi12:47:452:22:306:477:12
7:12
+0:20
35K
21.75 mi12:52:442:27:296:474:59
6:40
-0:32
23M
23.00 mi13:01:222:36:076:478:38
6:54
+0:14
24M
24.00 mi13:08:042:42:496:476:42
6:42
-0:12
40K
24.85 mi13:14:012:48:466:475:57
6:58
+0:16
25.2M
25.20 mi13:16:342:51:196:482:33
7:24
+0:26
Finish
26.22 mi13:23:072:57:526:476:33
6:26
-0:58

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

6:26 /mi

Average Pace

6:47 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:07

95% of race

Time at Steady Pace

9:45

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:47 /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 mi10:46:0720:526:4320:52
6:43
#3835
10K
6.21 mi11:06:5641:416:4220:49
6:42
#4074
15K
9.32 mi11:27:451:02:306:4220:49
6:42
#4073
20K
12.43 mi11:48:471:23:326:4321:02
6:46
#4089
Half
13.11 mi11:53:211:28:066:434:34
6:42
#4095
25K
15.53 mi12:09:511:44:366:4416:30
6:48
#4083
30K
18.64 mi12:31:132:05:586:4521:22
6:53
#3929
20M
20.00 mi12:40:332:15:186:469:20
6:52
#3827
21M
21.00 mi12:47:452:22:306:477:12
7:12
#3744
35K
21.75 mi12:52:442:27:296:474:59
6:40
#3707
23M
23.00 mi13:01:222:36:076:478:38
6:54
#3632
24M
24.00 mi13:08:042:42:496:476:42
6:42
#3591
40K
24.85 mi13:14:012:48:466:475:57
6:58
#3569
25.2M
25.20 mi13:16:342:51:196:482:33
7:24
#3553
Finish
26.22 mi13:23:072:57:526:476:33
6:26
#3449
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi38352252254155(Top 16%)252(Top 2%)252(Top 5%)
10K6.21 mi3.10 mi4074-239240-15240-154351(Top 16%)271(Top 2%)271(Top 6%)
15K9.32 mi3.11 mi4073+12402404155(Top 16%)252(Top 2%)252(Top 5%)
20K12.43 mi3.11 mi4089-16245-5245-54188(Top 16%)262(Top 2%)262(Top 5%)
Half13.11 mi0.68 mi4095-6249-4249-44369(Top 16%)278(Top 2%)278(Top 6%)
25K15.53 mi2.42 mi4083+12245+4245+44229(Top 16%)268(Top 2%)268(Top 5%)
30K18.64 mi3.11 mi3929+154223+22223+223520(Top 13%)207(Top 2%)207(Top 4%)
20M20.00 mi1.36 mi3827+102216+7216+73250(Top 12%)202(Top 2%)202(Top 4%)
21M21.00 mi1.00 mi3744+83211+5211+53138(Top 12%)196(Top 2%)196(Top 4%)
35K21.75 mi0.75 mi3707+37206+5206+53390(Top 13%)233(Top 2%)233(Top 5%)
23M23.00 mi1.25 mi3632+75200+6200+63228(Top 12%)225(Top 2%)225(Top 5%)
24M24.00 mi1.00 mi3591+41199+1199+13137(Top 12%)224(Top 2%)224(Top 5%)
40K24.85 mi0.85 mi3569+22198+1198+13655(Top 14%)338(Top 3%)338(Top 7%)
25.2M25.20 mi0.35 mi3553+16197+1197+13461(Top 13%)324(Top 3%)324(Top 7%)
Finish26.22 mi1.02 mi3449+104196+1196+12174(Top 8%)157(Top 1%)157(Top 3%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21stories
+97ft-345ft

Overall

4155

Females

252

F18-39

252

5K→10K

3.1 - 6.2 mi

Top 16%
×5stories
+79ft-138ft

Overall

4351

Females

271

F18-39

271

10K→15K

6.2 - 9.3 mi

Top 16%
×3stories
+67ft-78ft

Overall

4155

Females

252

F18-39

252

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4188

Females

262

F18-39

262

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4369

Females

278

F18-39

278

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4229

Females

268

F18-39

268

25K→30K

15.5 - 18.6 mi

Top 13%
×9stories
+181ft-148ft

Overall

3520

Females

207

F18-39

207

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3250

Females

202

F18-39

202

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3138

Females

196

F18-39

196

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3390

Females

233

F18-39

233

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3228

Females

225

F18-39

225

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3137

Females

224

F18-39

224

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3655

Females

338

F18-39

338

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3461

Females

324

F18-39

324

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2174

Females

157

F18-39

157

Passing Analysis

Category:
Athletes Passed
1279
Passed By
893
Net Change
+386
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3835
5K → 10K122361-239#3835#4074
10K → 15K123122+1#4074#4073
15K → 20K103119-16#4073#4089
20K → Half2228-6#4089#4095
Half → 25K7967+12#4095#4083
25K → 30K19238+154#4083#3929
30K → 20M12523+102#3929#3827
20M → 21M10320+83#3827#3744
21M → 35K4710+37#3744#3707
35K → 23M9823+75#3707#3632
23M → 24M6726+41#3632#3591
24M → 40K5533+22#3591#3569
40K → 25.2M237+16#3569#3553
25.2M → Finish12016+104#3553#3449
TOTALS1279893+386
📊

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