Boston Marathon logo
BOSTON MARATHON 2023

Anna Henry

Bib: 10041•F

NC

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 48%
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
26:03
Rank: #16773
Start → 5K
26:03 | 8:23/mi
10K· 6.21 mi
52:48
Rank: #17894 (-1121)
5K → 10K
26:45 | 8:37/mi
15K· 9.32 mi
1:18:35
Rank: #17402 (+492)
10K → 15K
25:47 | 8:18/mi
20K· 12.43 mi
1:48:33
Rank: #18993 (-1591)
15K → 20K
29:58 | 9:39/mi
Half· 13.11 mi
1:54:09
Rank: #18834 (+159)
20K → Half
5:36 | 8:12/mi
25K· 15.53 mi
2:14:15
Rank: #18221 (+613)
Half → 25K
20:06 | 8:17/mi
30K· 18.64 mi
2:41:26
Rank: #17715 (+506)
25K → 30K
27:11 | 8:45/mi
20M
2:53:12
Rank: #17487 (+228)
30K → 20M
11:46 | 8:40/mi
21M
3:01:53
Rank: #17165 (+322)
20M → 21M
8:41 | 8:41/mi
35K· 21.75 mi
3:07:51
Rank: #16979 (+186)
21M → 35K
5:58 | 7:59/mi
23M
3:18:03
Rank: #16643 (+336)
35K → 23M
10:12 | 8:09/mi
24M
3:26:03
Rank: #16424 (+219)
23M → 24M
8:00 | 8:00/mi
40K· 24.85 mi
3:33:54
Rank: #16428 (-4)
24M → 40K
7:51 | 9:11/mi
25.2M
3:36:45
Rank: #16294 (+134)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:44:25
Rank: #16029 (+265)
25.2M → Finish
7:40 | 7:31/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
Time1:54:09
Pace8:42 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:50:16
Pace8:25 /mi
📊Negative Split: 3.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:4026:038:2326:03
8:23
-
10K
6.21 mi11:47:2552:488:3026:45
8:37
+0:14
15K
9.32 mi12:13:121:18:358:2625:47
8:18
-0:19
20K
12.43 mi12:43:101:48:338:4429:58
9:39
+1:21
Half
13.11 mi12:48:461:54:098:425:36
8:12
-1:27
25K
15.53 mi13:08:522:14:158:3920:06
8:17
+0:05
30K
18.64 mi13:36:032:41:268:4027:11
8:45
+0:28
20M
20.00 mi13:47:492:53:128:4011:46
8:40
-0:05
21M
21.00 mi13:56:303:01:538:408:41
8:41
+0:01
35K
21.75 mi14:02:283:07:518:385:58
7:59
-0:42
23M
23.00 mi14:12:403:18:038:3710:12
8:09
+0:10
24M
24.00 mi14:20:403:26:038:358:00
8:00
-0:09
40K
24.85 mi14:28:313:33:548:367:51
9:11
+1:11
25.2M
25.20 mi14:31:223:36:458:362:51
8:16
-0:55
Finish
26.22 mi14:39:023:44:258:347:40
7:31
-0:45

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

7:31 /mi

Average Pace

8:34 /mi

Slowest Pace

9:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

21:38

10% of race

Time at Steady Pace

1:30:35

40% of race

Time at Slower Pace

1:52:12

50% of race

Average Pace: 8:34 /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 mi11:20:4026:038:2326:03
8:23
#16773
10K
6.21 mi11:47:2552:488:3026:45
8:37
#17894
15K
9.32 mi12:13:121:18:358:2625:47
8:18
#17402
20K
12.43 mi12:43:101:48:338:4429:58
9:39
#18993
Half
13.11 mi12:48:461:54:098:425:36
8:12
#18834
25K
15.53 mi13:08:522:14:158:3920:06
8:17
#18221
30K
18.64 mi13:36:032:41:268:4027:11
8:45
#17715
20M
20.00 mi13:47:492:53:128:4011:46
8:40
#17487
21M
21.00 mi13:56:303:01:538:408:41
8:41
#17165
35K
21.75 mi14:02:283:07:518:385:58
7:59
#16979
23M
23.00 mi14:12:403:18:038:3710:12
8:09
#16643
24M
24.00 mi14:20:403:26:038:358:00
8:00
#16424
40K
24.85 mi14:28:313:33:548:367:51
9:11
#16428
25.2M
25.20 mi14:31:223:36:458:362:51
8:16
#16294
Finish
26.22 mi14:39:023:44:258:347:40
7:31
#16029
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi167735779577916537(Top 62%)5616(Top 49%)5616(Top 115%)
10K6.21 mi3.10 mi17894-11216462-6836462-68318894(Top 71%)7021(Top 61%)7021(Top 144%)
15K9.32 mi3.11 mi17402+4926158+3046158+30416537(Top 62%)5616(Top 49%)5616(Top 115%)
20K12.43 mi3.11 mi18993-15917119-9617119-96121987(Top 83%)8790(Top 77%)8790(Top 180%)
Half13.11 mi0.68 mi18834+1597023+967023+9615919(Top 60%)5251(Top 46%)5251(Top 108%)
25K15.53 mi2.42 mi18221+6136661+3626661+36214909(Top 56%)4776(Top 42%)4776(Top 98%)
30K18.64 mi3.11 mi17715+5066386+2756386+27515786(Top 59%)5377(Top 47%)5377(Top 110%)
20M20.00 mi1.36 mi17487+2286271+1156271+11514652(Top 55%)4804(Top 42%)4804(Top 98%)
21M21.00 mi1.00 mi17165+3226090+1816090+18111607(Top 44%)3212(Top 28%)3212(Top 66%)
35K21.75 mi0.75 mi16979+1865979+1115979+11112035(Top 45%)3471(Top 30%)3471(Top 71%)
23M23.00 mi1.25 mi16643+3365816+1635816+16310858(Top 41%)2960(Top 26%)2960(Top 61%)
24M24.00 mi1.00 mi16424+2195706+1105706+11011286(Top 42%)3248(Top 28%)3248(Top 67%)
40K24.85 mi0.85 mi16428-45734-285734-2817030(Top 64%)6415(Top 56%)6415(Top 131%)
25.2M25.20 mi0.35 mi16294+1345657+775657+778228(Top 31%)1955(Top 17%)1955(Top 40%)
Finish26.22 mi1.02 mi16029+2655506+1515506+1518778(Top 33%)2158(Top 19%)2158(Top 44%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21stories
+97ft-345ft

Overall

16537

Females

5616

F18-39

5616

5K→10K

3.1 - 6.2 mi

Top 71%
×5stories
+79ft-138ft

Overall

18894

Females

7021

F18-39

7021

10K→15K

6.2 - 9.3 mi

Top 62%
×3stories
+67ft-78ft

Overall

16537

Females

5616

F18-39

5616

15K→20K

9.3 - 12.4 mi

Top 83%
×5stories
+106ft-86ft

Overall

21987

Females

8790

F18-39

8790

20K→Half

12.4 - 13.1 mi

Top 60%
×2stories
+19ft-37ft

Overall

15919

Females

5251

F18-39

5251

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

14909

Females

4776

F18-39

4776

25K→30K

15.5 - 18.6 mi

Top 59%
×9stories
+181ft-148ft

Overall

15786

Females

5377

F18-39

5377

30K→20M

18.6 - 20.0 mi

Top 55%
×5stories
+64ft-50ft

Overall

14652

Females

4804

F18-39

4804

20M→21M

20.0 - 21.0 mi

Top 44%
×8stories
+106ft-24ft

Overall

11607

Females

3212

F18-39

3212

21M→35K

21.0 - 21.8 mi

Top 45%
×7stories
+17ft-86ft

Overall

12035

Females

3471

F18-39

3471

35K→23M

21.8 - 23.0 mi

Top 41%
×5stories
+23ft-63ft

Overall

10858

Females

2960

F18-39

2960

23M→24M

23.0 - 24.0 mi

Top 42%
×6stories
+12ft-82ft

Overall

11286

Females

3248

F18-39

3248

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

17030

Females

6415

F18-39

6415

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8228

Females

1955

F18-39

1955

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2stories
+22ft-21ft

Overall

8778

Females

2158

F18-39

2158

Passing Analysis

Category:
Athletes Passed
3667
Passed By
2923
Net Change
+744
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16773
5K → 10K541175-1121#16773#17894
10K → 15K53947+492#17894#17402
15K → 20K121603-1591#17402#18993
20K → Half1590+159#18993#18834
Half → 25K6141+613#18834#18221
25K → 30K5126+506#18221#17715
30K → 20M2346+228#17715#17487
20M → 21M3242+322#17487#17165
21M → 35K1860+186#17165#16979
35K → 23M3404+336#16979#16643
23M → 24M2212+219#16643#16424
24M → 40K7175-4#16424#16428
40K → 25.2M1340+134#16428#16294
25.2M → Finish2672+265#16294#16029
TOTALS36672923+744
📊

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