Boston Marathon logo
BOSTON MARATHON 2023

Amy Bartholomew

Bib: 13719•F

GA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 37%
Gender (Female)
#0 / 11423
Top 18%
Masters (Masters Women)
#0 / 6539
Top 8%
Division (F45-49)
#0 / 1817
Top 7%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:03
Rank: #11843
Start → 5K
24:03 | 7:44/mi
10K· 6.21 mi
47:49
Rank: #11762 (+81)
5K → 10K
23:46 | 7:39/mi
15K· 9.32 mi
1:11:27
Rank: #11499 (+263)
10K → 15K
23:38 | 7:36/mi
20K· 12.43 mi
1:35:13
Rank: #11204 (+295)
15K → 20K
23:46 | 7:39/mi
Half· 13.11 mi
1:40:26
Rank: #11204
20K → Half
5:13 | 7:39/mi
25K· 15.53 mi
1:58:51
Rank: #10910 (+294)
Half → 25K
18:25 | 7:36/mi
30K· 18.64 mi
2:22:48
Rank: #10439 (+471)
25K → 30K
23:57 | 7:43/mi
20M
2:33:22
Rank: #10307 (+132)
30K → 20M
10:34 | 7:47/mi
21M
2:41:30
Rank: #10144 (+163)
20M → 21M
8:08 | 8:08/mi
35K· 21.75 mi
2:47:09
Rank: #10077 (+67)
21M → 35K
5:39 | 7:33/mi
23M
2:57:00
Rank: #9969 (+108)
35K → 23M
9:51 | 7:52/mi
24M
3:04:52
Rank: #9961 (+8)
23M → 24M
7:52 | 7:52/mi
40K· 24.85 mi
3:11:46
Rank: #9965 (-4)
24M → 40K
6:54 | 8:04/mi
25.2M
3:14:49
Rank: #9971 (-6)
40K → 25.2M
3:03 | 8:51/mi
Finish· 26.22 mi
3:22:44
Rank: #9972 (-1)
25.2M → Finish
7:55 | 7:46/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
Time1:40:26
Pace7:40 /mi
2nd Half
Distance13.11 mi
Time1:42:18
Pace7:48 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5624:037:4424:03
7:44
-
10K
6.21 mi11:16:4247:497:4223:46
7:39
-0:05
15K
9.32 mi11:40:201:11:277:4023:38
7:36
-0:03
20K
12.43 mi12:04:061:35:137:4023:46
7:39
+0:03
Half
13.11 mi12:09:191:40:267:405:13
7:39
0:00
25K
15.53 mi12:27:441:58:517:3918:25
7:36
-0:03
30K
18.64 mi12:51:412:22:487:4023:57
7:43
+0:07
20M
20.00 mi13:02:152:33:227:4010:34
7:47
+0:04
21M
21.00 mi13:10:232:41:307:418:08
8:08
+0:21
35K
21.75 mi13:16:022:47:097:415:39
7:33
-0:35
23M
23.00 mi13:25:532:57:007:429:51
7:52
+0:19
24M
24.00 mi13:33:453:04:527:427:52
7:52
0:00
40K
24.85 mi13:40:393:11:467:436:54
8:04
+0:12
25.2M
25.20 mi13:43:423:14:497:443:03
8:51
+0:47
Finish
26.22 mi13:51:373:22:447:447:55
7:46
-1:05

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

7:33 /mi

Average Pace

7:44 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:19:41

98% of race

Time at Steady Pace

3:03

2% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:44 /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 mi10:52:5624:037:4424:03
7:44
#11843
10K
6.21 mi11:16:4247:497:4223:46
7:39
#11762
15K
9.32 mi11:40:201:11:277:4023:38
7:36
#11499
20K
12.43 mi12:04:061:35:137:4023:46
7:39
#11204
Half
13.11 mi12:09:191:40:267:405:13
7:39
#11204
25K
15.53 mi12:27:441:58:517:3918:25
7:36
#10910
30K
18.64 mi12:51:412:22:487:4023:57
7:43
#10439
20M
20.00 mi13:02:152:33:227:4010:34
7:47
#10307
21M
21.00 mi13:10:232:41:307:418:08
8:08
#10144
35K
21.75 mi13:16:022:47:097:415:39
7:33
#10077
23M
23.00 mi13:25:532:57:007:429:51
7:52
#9969
24M
24.00 mi13:33:453:04:527:427:52
7:52
#9961
40K
24.85 mi13:40:393:11:467:436:54
8:04
#9965
25.2M
25.20 mi13:43:423:14:497:443:03
8:51
#9971
Finish
26.22 mi13:51:373:22:447:447:55
7:46
#9972
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi118432767276711087(Top 42%)2398(Top 21%)2398(Top 132%)
10K6.21 mi3.10 mi11762+812739+282739+2811792(Top 44%)2751(Top 24%)2751(Top 151%)
15K9.32 mi3.11 mi11499+2632602+1372602+13711087(Top 42%)2398(Top 21%)2398(Top 132%)
20K12.43 mi3.11 mi11204+2952435+1672435+16710519(Top 40%)2151(Top 19%)2151(Top 118%)
Half13.11 mi0.68 mi112042442-72442-711431(Top 43%)2572(Top 23%)2572(Top 142%)
25K15.53 mi2.42 mi10910+2942307+1352307+1359529(Top 36%)1796(Top 16%)1796(Top 99%)
30K18.64 mi3.11 mi10439+4712120+1872120+1878722(Top 33%)1605(Top 14%)1605(Top 88%)
20M20.00 mi1.36 mi10307+1322073+472073+478720(Top 33%)1685(Top 15%)1685(Top 93%)
21M21.00 mi1.00 mi10144+1632015+582015+588236(Top 31%)1632(Top 14%)1632(Top 90%)
35K21.75 mi0.75 mi10077+672006+92006+98972(Top 34%)1909(Top 17%)1909(Top 105%)
23M23.00 mi1.25 mi9969+1081972+341972+348887(Top 33%)1969(Top 17%)1969(Top 108%)
24M24.00 mi1.00 mi9961+82014-422014-4210291(Top 39%)2723(Top 24%)2723(Top 150%)
40K24.85 mi0.85 mi9965-42046-322046-3210525(Top 40%)2887(Top 25%)2887(Top 159%)
25.2M25.20 mi0.35 mi9971-62066-202066-2011593(Top 44%)3489(Top 31%)3489(Top 192%)
Finish26.22 mi1.02 mi9972-12081-152081-1510462(Top 39%)2915(Top 26%)2915(Top 160%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21stories
+97ft-345ft

Overall

11087

Females

2398

F45-49

2398

5K→10K

3.1 - 6.2 mi

Top 44%
×5stories
+79ft-138ft

Overall

11792

Females

2751

F45-49

2751

10K→15K

6.2 - 9.3 mi

Top 42%
×3stories
+67ft-78ft

Overall

11087

Females

2398

F45-49

2398

15K→20K

9.3 - 12.4 mi

Top 40%
×5stories
+106ft-86ft

Overall

10519

Females

2151

F45-49

2151

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

11431

Females

2572

F45-49

2572

Half→25K

13.1 - 15.5 mi

Top 36%
×4stories
+66ft-88ft

Overall

9529

Females

1796

F45-49

1796

25K→30K

15.5 - 18.6 mi

Top 33%
×9stories
+181ft-148ft

Overall

8722

Females

1605

F45-49

1605

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

8720

Females

1685

F45-49

1685

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8236

Females

1632

F45-49

1632

21M→35K

21.0 - 21.8 mi

Top 34%
×7stories
+17ft-86ft

Overall

8972

Females

1909

F45-49

1909

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

8887

Females

1969

F45-49

1969

23M→24M

23.0 - 24.0 mi

Top 39%
×6stories
+12ft-82ft

Overall

10291

Females

2723

F45-49

2723

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10525

Females

2887

F45-49

2887

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11593

Females

3489

F45-49

3489

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2stories
+22ft-21ft

Overall

10462

Females

2915

F45-49

2915

Passing Analysis

Category:
Athletes Passed
2627*
Passed By
755
Net Change
+1871
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11843
5K → 10K336255+81#11843#11762
10K → 15K34784+263#11762#11499
15K → 20K33439+295#11499#11204
20K → Half28280#11204#11204
Half → 25K30410+294#11204#10910
25K → 30K48615+471#10910#10439
30K → 20M149*17+132#10439#10307
20M → 21M18017+163#10307#10144
21M → 35K7912+67#10144#10077
35K → 23M131*23+108#10077#9969
23M → 24M8071+8#9969#9961
24M → 40K6468-4#9961#9965
40K → 25.2M2935-6#9965#9971
25.2M → Finish80*81-1#9971#9972
TOTALS2627*755+1871

* 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