Boston Marathon logo
BOSTON MARATHON 2023

Carrie Gregory

Bib: 11824•F

PE

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 29%
Gender (Female)
#0 / 11423
Top 10%
Division (F18-39)
#0 / 4884
Top 19%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:29/mi
23:14
↑ 97↓ 3451.5%
10K· 6.21 mi
7:15/mi
45:44
↑ 79↓ 1380.4%
15K· 9.32 mi
7:14/mi
1:08:12
↑ 67↓ 78
20K· 12.43 mi
7:25/mi
1:31:14
↑ 106↓ 860.1%
Half· 13.11 mi
7:17/mi
1:36:12
↑ 19↓ 370.5%
25K· 15.53 mi
7:25/mi
1:54:10
↑ 66↓ 880.2%
30K· 18.64 mi
7:39/mi
2:17:56
↑ 181↓ 1480.2%
20M
7:39/mi
2:28:20
↑ 64↓ 500.2%
21M
8:11/mi
2:36:31
↑ 106↓ 241.6%
35K· 21.75 mi
7:12/mi
2:41:54
↑ 17↓ 861.7%
23M
7:24/mi
2:51:10
↑ 23↓ 630.6%
24M
7:09/mi
2:58:19
↓ 821.3%
40K· 24.85 mi
7:19/mi
3:04:34
↓ 200.3%
25.2M
8:04/mi
3:07:21
↑ 13↓ 160.2%
Finish· 26.22 mi
7:30/mi
3:15:00
↑ 22↓ 21

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
Time1:36:12
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:38:48
Pace7:32 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3223:147:2923:14
7:29
-
10K
6.21 mi11:13:0245:447:2222:30
7:15
-0:14
15K
9.32 mi11:35:301:08:127:1922:28
7:14
-0:01
20K
12.43 mi11:58:321:31:147:2023:02
7:25
+0:11
Half
13.11 mi12:03:301:36:127:204:58
7:17
-0:08
25K
15.53 mi12:21:281:54:107:2117:58
7:25
+0:08
30K
18.64 mi12:45:142:17:567:2423:46
7:39
+0:14
20M
20.00 mi12:55:382:28:207:2510:24
7:39
0:00
21M
21.00 mi13:03:492:36:317:278:11
8:11
+0:32
35K
21.75 mi13:09:122:41:547:275:23
7:12
-0:59
23M
23.00 mi13:18:282:51:107:279:16
7:24
+0:12
24M
24.00 mi13:25:372:58:197:267:09
7:09
-0:15
40K
24.85 mi13:31:523:04:347:266:15
7:19
+0:10
25.2M
25.20 mi13:34:393:07:217:262:47
8:04
+0:45
Finish
26.22 mi13:42:183:15:007:277:39
7:30
-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

7:09 /mi

Average Pace

7:27 /mi

Slowest Pace

8:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:04:02

94% of race

Time at Steady Pace

10:58

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:26 /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 mi10:50:3223:147:2923:14
7:29
#9466
10K
6.21 mi11:13:0245:447:2222:30
7:15
#8900
15K
9.32 mi11:35:301:08:127:1922:28
7:14
#8594
20K
12.43 mi11:58:321:31:147:2023:02
7:25
#8569
Half
13.11 mi12:03:301:36:127:204:58
7:17
#8565
25K
15.53 mi12:21:281:54:107:2117:58
7:25
#8436
30K
18.64 mi12:45:142:17:567:2423:46
7:39
#8355
20M
20.00 mi12:55:382:28:207:2510:24
7:39
#8294
21M
21.00 mi13:03:492:36:317:278:11
8:11
#8295
35K
21.75 mi13:09:122:41:547:275:23
7:12
#8208
23M
23.00 mi13:18:282:51:107:279:16
7:24
#8025
24M
24.00 mi13:25:372:58:197:267:09
7:09
#7869
40K
24.85 mi13:31:523:04:347:266:15
7:19
#7758
25.2M
25.20 mi13:34:393:07:217:262:47
8:04
#7723
Finish
26.22 mi13:42:183:15:007:277:39
7:30
#7731
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9466161016108036(Top 30%)1086(Top 10%)1086(Top 22%)
10K6.21 mi3.10 mi8900+5661374+2361374+2368439(Top 32%)1212(Top 11%)1212(Top 25%)
15K9.32 mi3.11 mi8594+3061264+1101264+1108036(Top 30%)1086(Top 10%)1086(Top 22%)
20K12.43 mi3.11 mi8569+251270-61270-68642(Top 32%)1356(Top 12%)1356(Top 28%)
Half13.11 mi0.68 mi8565+41263+71263+78548(Top 32%)1324(Top 12%)1324(Top 27%)
25K15.53 mi2.42 mi8436+1291234+291234+298133(Top 31%)1239(Top 11%)1239(Top 25%)
30K18.64 mi3.11 mi8355+811249-151249-158315(Top 31%)1439(Top 13%)1439(Top 29%)
20M20.00 mi1.36 mi8294+611251-21251-27879(Top 30%)1367(Top 12%)1367(Top 28%)
21M21.00 mi1.00 mi8295-11260-91260-98565(Top 32%)1753(Top 15%)1753(Top 36%)
35K21.75 mi0.75 mi8208+871244+161244+166566(Top 25%)956(Top 8%)956(Top 20%)
23M23.00 mi1.25 mi8025+1831197+471197+475901(Top 22%)788(Top 7%)788(Top 16%)
24M24.00 mi1.00 mi7869+1561159+381159+385510(Top 21%)734(Top 6%)734(Top 15%)
40K24.85 mi0.85 mi7758+1111130+291130+295574(Top 21%)849(Top 7%)849(Top 17%)
25.2M25.20 mi0.35 mi7723+351132-21132-27053(Top 26%)1473(Top 13%)1473(Top 30%)
Finish26.22 mi1.02 mi7731-81155-231155-238665(Top 33%)2112(Top 18%)2112(Top 43%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21story building
+97ft-345ft

Overall

8036

Females

1086

F18-39

1086

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

8439

Females

1212

F18-39

1212

10K→15K

6.2 - 9.3 mi

Top 30%
×3story building
+67ft-78ft

Overall

8036

Females

1086

F18-39

1086

15K→20K

9.3 - 12.4 mi

Top 32%
×5story building
+106ft-86ft

Overall

8642

Females

1356

F18-39

1356

20K→Half

12.4 - 13.1 mi

Top 32%
×2story building
+19ft-37ft

Overall

8548

Females

1324

F18-39

1324

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8133

Females

1239

F18-39

1239

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8315

Females

1439

F18-39

1439

30K→20M

18.6 - 20.0 mi

Top 30%
×5story building
+64ft-50ft

Overall

7879

Females

1367

F18-39

1367

20M→21M

20.0 - 21.0 mi

Top 32%
×8story building
+106ft-24ft

Overall

8565

Females

1753

F18-39

1753

21M→35K

21.0 - 21.8 mi

Top 25%
×7story building
+17ft-86ft

Overall

6566

Females

956

F18-39

956

35K→23M

21.8 - 23.0 mi

Top 22%
×5story building
+23ft-63ft

Overall

5901

Females

788

F18-39

788

23M→24M

23.0 - 24.0 mi

Top 21%
×6story building
+12ft-82ft

Overall

5510

Females

734

F18-39

734

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5574

Females

849

F18-39

849

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7053

Females

1473

F18-39

1473

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

8665

Females

2112

F18-39

2112

Passing Analysis

Category:
Athletes Passed
2351
Passed By
616
Net Change
+1735
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9466
5K → 10K64579+566#9466#8900
10K → 15K33327+306#8900#8594
15K → 20K151126+25#8594#8569
20K → Half2723+4#8569#8565
Half → 25K16435+129#8565#8436
25K → 30K190109+81#8436#8355
30K → 20M9837+61#8355#8294
20M → 21M7071-1#8294#8295
21M → 35K936+87#8295#8208
35K → 23M19310+183#8208#8025
23M → 24M1637+156#8025#7869
24M → 40K12110+111#7869#7758
40K → 25.2M427+35#7758#7723
25.2M → Finish6169-8#7723#7731
TOTALS2351616+1735
📊

Passing Visuals

Category:
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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing