Boston Marathon logo
BOSTON MARATHON 2025

Courtney Napolitano

Bib: 15027•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 48%
Gender (Female)
#0 / 12228
Top 33%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:58
Rank: #14105
Start → 5K
23:58 | 7:43/mi
10K· 6.21 mi
48:13
Rank: #14434 (-329)
5K → 10K
24:15 | 7:48/mi
15K· 9.32 mi
1:12:30
Rank: #14450 (-16)
10K → 15K
24:17 | 7:49/mi
20K· 12.43 mi
1:37:37
Rank: #14708 (-258)
15K → 20K
25:07 | 8:05/mi
Half· 13.11 mi
1:43:09
Rank: #14818 (-110)
20K → Half
5:32 | 8:07/mi
25K· 15.53 mi
2:02:50
Rank: #14787 (+31)
Half → 25K
19:41 | 8:07/mi
30K· 18.64 mi
2:29:08
Rank: #14734 (+53)
25K → 30K
26:18 | 8:28/mi
20M
2:40:34
Rank: #14566 (+168)
30K → 20M
11:26 | 8:25/mi
21M
2:49:20
Rank: #14378 (+188)
20M → 21M
8:46 | 8:46/mi
35K· 21.75 mi
2:55:24
Rank: #14327 (+51)
21M → 35K
6:04 | 8:07/mi
23M
3:05:43
Rank: #14142 (+185)
35K → 23M
10:19 | 8:14/mi
24M
3:13:43
Rank: #13990 (+152)
23M → 24M
8:00 | 8:00/mi
40K· 24.85 mi
3:20:33
Rank: #13795 (+195)
24M → 40K
6:50 | 8:00/mi
25.2M
3:23:31
Rank: #13711 (+84)
40K → 25.2M
2:58 | 8:36/mi
Finish· 26.22 mi
3:31:19
Rank: #13567 (+144)
25.2M → Finish
7:48 | 7:39/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
Time1:43:09
Pace7:52 /mi
2nd Half
Distance13.11 mi
Time1:48:10
Pace8:15 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:4423:587:4323:58
7:43
-
10K
6.21 mi11:19:5948:137:4624:15
7:48
+0:05
15K
9.32 mi11:44:161:12:307:4724:17
7:49
+0:01
20K
12.43 mi12:09:231:37:377:5125:07
8:05
+0:16
Half
13.11 mi12:14:551:43:097:525:32
8:07
+0:02
25K
15.53 mi12:34:362:02:507:5419:41
8:07
0:00
30K
18.64 mi13:00:542:29:088:0026:18
8:28
+0:21
20M
20.00 mi13:12:202:40:348:0211:26
8:25
-0:03
21M
21.00 mi13:21:062:49:208:048:46
8:46
+0:21
35K
21.75 mi13:27:102:55:248:046:04
8:07
-0:39
23M
23.00 mi13:37:293:05:438:0410:19
8:14
+0:07
24M
24.00 mi13:45:293:13:438:048:00
8:00
-0:14
40K
24.85 mi13:52:193:20:338:046:50
8:00
0:00
25.2M
25.20 mi13:55:173:23:318:052:58
8:36
+0:36
Finish
26.22 mi14:03:053:31:198:047:48
7:39
-0:57

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

7:39 /mi

Average Pace

8:04 /mi

Slowest Pace

8:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:51

77% of race

Time at Steady Pace

49:28

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:04 /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 mi10:55:4423:587:4323:58
7:43
#14105
10K
6.21 mi11:19:5948:137:4624:15
7:48
#14434
15K
9.32 mi11:44:161:12:307:4724:17
7:49
#14450
20K
12.43 mi12:09:231:37:377:5125:07
8:05
#14708
Half
13.11 mi12:14:551:43:097:525:32
8:07
#14818
25K
15.53 mi12:34:362:02:507:5419:41
8:07
#14787
30K
18.64 mi13:00:542:29:088:0026:18
8:28
#14734
20M
20.00 mi13:12:202:40:348:0211:26
8:25
#14566
21M
21.00 mi13:21:062:49:208:048:46
8:46
#14378
35K
21.75 mi13:27:102:55:248:046:04
8:07
#14327
23M
23.00 mi13:37:293:05:438:0410:19
8:14
#14142
24M
24.00 mi13:45:293:13:438:048:00
8:00
#13990
40K
24.85 mi13:52:193:20:338:046:50
8:00
#13795
25.2M
25.20 mi13:55:173:23:318:052:58
8:36
#13711
Finish
26.22 mi14:03:053:31:198:047:48
7:39
#13567
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi141053976397614520(Top 51%)4321(Top 35%)4321(Top 79%)
10K6.21 mi3.10 mi14434-3294194-2184194-21814877(Top 52%)4465(Top 37%)4465(Top 82%)
15K9.32 mi3.11 mi14450-164230-364230-3614520(Top 51%)4321(Top 35%)4321(Top 79%)
20K12.43 mi3.11 mi14708-2584412-1824412-18215535(Top 55%)4927(Top 40%)4927(Top 90%)
Half13.11 mi0.68 mi14818-1104484-724484-7216684(Top 59%)5559(Top 45%)5559(Top 102%)
25K15.53 mi2.42 mi14787+314497-134497-1314760(Top 52%)4616(Top 38%)4616(Top 84%)
30K18.64 mi3.11 mi14734+534523-264523-2614553(Top 51%)4653(Top 38%)4653(Top 85%)
20M20.00 mi1.36 mi14566+1684450+734450+7313253(Top 47%)4114(Top 34%)4114(Top 75%)
21M21.00 mi1.00 mi14378+1884368+824368+8212119(Top 43%)3664(Top 30%)3664(Top 67%)
35K21.75 mi0.75 mi14327+514354+144354+1413022(Top 46%)4170(Top 34%)4170(Top 76%)
23M23.00 mi1.25 mi14142+1854309+454309+4511676(Top 41%)3574(Top 29%)3574(Top 65%)
24M24.00 mi1.00 mi13990+1524259+504259+5011281(Top 40%)3461(Top 28%)3461(Top 63%)
40K24.85 mi0.85 mi13795+1954180+794180+7910200(Top 36%)3040(Top 25%)3040(Top 56%)
25.2M25.20 mi0.35 mi13711+844141+394141+399549(Top 34%)2826(Top 23%)2826(Top 52%)
Finish26.22 mi1.02 mi13567+1444075+664075+6610395(Top 37%)3181(Top 26%)3181(Top 58%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21stories
+97ft-345ft

Overall

14520

Females

4321

F18-39

4321

5K→10K

3.1 - 6.2 mi

Top 52%
×5stories
+79ft-138ft

Overall

14877

Females

4465

F18-39

4465

10K→15K

6.2 - 9.3 mi

Top 51%
×3stories
+67ft-78ft

Overall

14520

Females

4321

F18-39

4321

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

15535

Females

4927

F18-39

4927

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

16684

Females

5559

F18-39

5559

Half→25K

13.1 - 15.5 mi

Top 52%
×4stories
+66ft-88ft

Overall

14760

Females

4616

F18-39

4616

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

14553

Females

4653

F18-39

4653

30K→20M

18.6 - 20.0 mi

Top 47%
×5stories
+64ft-50ft

Overall

13253

Females

4114

F18-39

4114

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

12119

Females

3664

F18-39

3664

21M→35K

21.0 - 21.8 mi

Top 46%
×7stories
+17ft-86ft

Overall

13022

Females

4170

F18-39

4170

35K→23M

21.8 - 23.0 mi

Top 41%
×5stories
+23ft-63ft

Overall

11676

Females

3574

F18-39

3574

23M→24M

23.0 - 24.0 mi

Top 40%
×6stories
+12ft-82ft

Overall

11281

Females

3461

F18-39

3461

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10200

Females

3040

F18-39

3040

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9549

Females

2826

F18-39

2826

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2stories
+22ft-21ft

Overall

10395

Females

3181

F18-39

3181

Passing Analysis

Category:
Athletes Passed
2335
Passed By
1797
Net Change
+538
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14105
5K → 10K164493-329#14105#14434
10K → 15K195211-16#14434#14450
15K → 20K137395-258#14450#14708
20K → Half9119-110#14708#14818
Half → 25K191160+31#14818#14787
25K → 30K270217+53#14787#14734
30K → 20M23062+168#14734#14566
20M → 21M21729+188#14566#14378
21M → 35K8029+51#14378#14327
35K → 23M21833+185#14327#14142
23M → 24M17018+152#14142#13990
24M → 40K20813+195#13990#13795
40K → 25.2M862+84#13795#13711
25.2M → Finish16016+144#13711#13567
TOTALS23351797+538
📊

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