Boston Marathon logo
BOSTON MARATHON 2023

Ana Medina

Bib: 18469•F

MI

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 46%
Division (F40-44)
#0 / 1878
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
8:21/mi
25:56
↑ 97↓ 3451.5%
10K· 6.21 mi
8:28/mi
52:14
↑ 79↓ 1380.4%
15K· 9.32 mi
8:36/mi
1:18:56
↑ 67↓ 78
20K· 12.43 mi
8:41/mi
1:45:56
↑ 106↓ 860.1%
Half· 13.11 mi
8:36/mi
1:51:48
↑ 19↓ 370.5%
25K· 15.53 mi
8:43/mi
2:12:56
↑ 66↓ 880.2%
30K· 18.64 mi
8:59/mi
2:40:50
↑ 181↓ 1480.2%
20M
9:07/mi
2:53:14
↑ 64↓ 500.2%
21M
9:44/mi
3:02:58
↑ 106↓ 241.6%
35K· 21.75 mi
8:59/mi
3:09:41
↑ 17↓ 861.7%
23M
9:23/mi
3:21:26
↑ 23↓ 630.6%
24M
8:53/mi
3:30:19
↓ 821.3%
40K· 24.85 mi
8:49/mi
3:37:51
↓ 200.3%
25.2M
9:20/mi
3:41:04
↑ 13↓ 160.2%
Finish· 26.22 mi
8:29/mi
3:49:43
↑ 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
Time1:51:48
Pace8:32 /mi
2nd Half
Distance13.11 mi
Time1:57:55
Pace9:00 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:0825:568:2125:56
8:21
-
10K
6.21 mi11:53:2652:148:2426:18
8:28
+0:07
15K
9.32 mi12:20:081:18:568:2826:42
8:36
+0:08
20K
12.43 mi12:47:081:45:568:3127:00
8:41
+0:05
Half
13.11 mi12:53:001:51:488:325:52
8:36
-0:05
25K
15.53 mi13:14:082:12:568:3321:08
8:43
+0:07
30K
18.64 mi13:42:022:40:508:3827:54
8:59
+0:16
20M
20.00 mi13:54:262:53:148:4012:24
9:07
+0:08
21M
21.00 mi14:04:103:02:588:439:44
9:44
+0:37
35K
21.75 mi14:10:533:09:418:436:43
8:59
-0:45
23M
23.00 mi14:22:383:21:268:4511:45
9:23
+0:24
24M
24.00 mi14:31:313:30:198:468:53
8:53
-0:30
40K
24.85 mi14:39:033:37:518:467:32
8:49
-0:04
25.2M
25.20 mi14:42:163:41:048:463:13
9:20
+0:31
Finish
26.22 mi14:50:553:49:438:468:39
8:29
-0:51

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

8:21 /mi

Average Pace

8:46 /mi

Slowest Pace

9:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:25:01

89% of race

Time at Steady Pace

24:42

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:46 /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 mi11:27:0825:568:2125:56
8:21
#16489
10K
6.21 mi11:53:2652:148:2426:18
8:28
#17256
15K
9.32 mi12:20:081:18:568:2826:42
8:36
#17649
20K
12.43 mi12:47:081:45:568:3127:00
8:41
#17721
Half
13.11 mi12:53:001:51:488:325:52
8:36
#17737
25K
15.53 mi13:14:082:12:568:3321:08
8:43
#17670
30K
18.64 mi13:42:022:40:508:3827:54
8:59
#17533
20M
20.00 mi13:54:262:53:148:4012:24
9:07
#17499
21M
21.00 mi14:04:103:02:588:439:44
9:44
#17462
35K
21.75 mi14:10:533:09:418:436:43
8:59
#17478
23M
23.00 mi14:22:383:21:268:4511:45
9:23
#17505
24M
24.00 mi14:31:313:30:198:468:53
8:53
#17476
40K
24.85 mi14:39:033:37:518:467:32
8:49
#17391
25.2M
25.20 mi14:42:163:41:048:463:13
9:20
#17334
Finish
26.22 mi14:50:553:49:438:468:39
8:29
#17284
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi164895598559818406(Top 69%)6738(Top 59%)6738(Top 359%)
10K6.21 mi3.10 mi17256-7676092-4946092-49418034(Top 68%)6494(Top 57%)6494(Top 346%)
15K9.32 mi3.11 mi17649-3936305-2136305-21318406(Top 69%)6738(Top 59%)6738(Top 359%)
20K12.43 mi3.11 mi17721-726356-516356-5118067(Top 68%)6546(Top 57%)6546(Top 349%)
Half13.11 mi0.68 mi17737-166370-146370-1418340(Top 69%)6675(Top 58%)6675(Top 355%)
25K15.53 mi2.42 mi17670+676335+356335+3517474(Top 66%)6267(Top 55%)6267(Top 334%)
30K18.64 mi3.11 mi17533+1376275+606275+6017074(Top 64%)6110(Top 53%)6110(Top 325%)
20M20.00 mi1.36 mi17499+346278-36278-317204(Top 65%)6285(Top 55%)6285(Top 335%)
21M21.00 mi1.00 mi17462+376269+96269+916994(Top 64%)6187(Top 54%)6187(Top 329%)
35K21.75 mi0.75 mi17478-166292-236292-2317830(Top 67%)6732(Top 59%)6732(Top 358%)
23M23.00 mi1.25 mi17505-276326-346326-3417884(Top 67%)6795(Top 59%)6795(Top 362%)
24M24.00 mi1.00 mi17476+296309+176309+1716704(Top 63%)6198(Top 54%)6198(Top 330%)
40K24.85 mi0.85 mi17391+856275+346275+3415170(Top 57%)5400(Top 47%)5400(Top 288%)
25.2M25.20 mi0.35 mi17334+576254+216254+2114426(Top 54%)4996(Top 44%)4996(Top 266%)
Finish26.22 mi1.02 mi17284+506232+226232+2215389(Top 58%)5482(Top 48%)5482(Top 292%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

18406

Females

6738

F40-44

6738

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

18034

Females

6494

F40-44

6494

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

18406

Females

6738

F40-44

6738

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

18067

Females

6546

F40-44

6546

20K→Half

12.4 - 13.1 mi

Top 69%
×2story building
+19ft-37ft

Overall

18340

Females

6675

F40-44

6675

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

17474

Females

6267

F40-44

6267

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

17074

Females

6110

F40-44

6110

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

17204

Females

6285

F40-44

6285

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

16994

Females

6187

F40-44

6187

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

17830

Females

6732

F40-44

6732

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

17884

Females

6795

F40-44

6795

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

16704

Females

6198

F40-44

6198

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

15170

Females

5400

F40-44

5400

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

14426

Females

4996

F40-44

4996

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

15389

Females

5482

F40-44

5482

Passing Analysis

Category:
Athletes Passed
1380
Passed By
2175
Net Change
-795
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16489
5K → 10K90857-767#16489#17256
10K → 15K81474-393#17256#17649
15K → 20K147219-72#17649#17721
20K → Half2440-16#17721#17737
Half → 25K14982+67#17737#17670
25K → 30K239102+137#17670#17533
30K → 20M10369+34#17533#17499
20M → 21M9659+37#17499#17462
21M → 35K4864-16#17462#17478
35K → 23M77104-27#17478#17505
23M → 24M7041+29#17505#17476
24M → 40K10318+85#17476#17391
40K → 25.2M6710+57#17391#17334
25.2M → Finish8636+50#17334#17284
TOTALS13802175-795
📊

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing