Boston Marathon logo
BOSTON MARATHON 2025

Melissa Pecora

Bib: 20866•F

NY

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ 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
8:43/mi
27:05
↑ 97↓ 3451.5%
10K· 6.21 mi
8:50/mi
54:31
↑ 79↓ 1380.4%
15K· 9.32 mi
8:59/mi
1:22:26
↑ 67↓ 78
20K· 12.43 mi
9:09/mi
1:50:53
↑ 106↓ 860.1%
Half· 13.11 mi
8:51/mi
1:56:55
↑ 19↓ 370.5%
25K· 15.53 mi
9:12/mi
2:19:14
↑ 66↓ 880.2%
30K· 18.64 mi
9:57/mi
2:50:08
↑ 181↓ 1480.2%
20M
10:05/mi
3:03:50
↑ 64↓ 500.2%
21M
11:14/mi
3:15:04
↑ 106↓ 241.6%
35K· 21.75 mi
10:15/mi
3:22:44
↑ 17↓ 861.7%
23M
10:10/mi
3:35:28
↑ 23↓ 630.6%
24M
10:09/mi
3:45:37
↓ 821.3%
40K· 24.85 mi
10:12/mi
3:54:20
↓ 200.3%
25.2M
11:39/mi
3:58:21
↑ 13↓ 160.2%
Finish· 26.22 mi
9:41/mi
4:08:13
↑ 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
Time1:56:55
Pace8:55 /mi
2nd Half
Distance13.11 mi
Time2:11:18
Pace10:01 /mi
📊Positive Split: 12.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3627:058:4327:05
8:43
-
10K
6.21 mi11:48:0254:318:4627:26
8:50
+0:07
15K
9.32 mi12:15:571:22:268:5127:55
8:59
+0:09
20K
12.43 mi12:44:241:50:538:5528:27
9:09
+0:10
Half
13.11 mi12:50:261:56:558:556:02
8:51
-0:18
25K
15.53 mi13:12:452:19:148:5822:19
9:12
+0:21
30K
18.64 mi13:43:392:50:089:0830:54
9:57
+0:45
20M
20.00 mi13:57:213:03:509:1113:42
10:05
+0:08
21M
21.00 mi14:08:353:15:049:1711:14
11:14
+1:09
35K
21.75 mi14:16:153:22:449:197:40
10:15
-0:59
23M
23.00 mi14:28:593:35:289:2212:44
10:10
-0:05
24M
24.00 mi14:39:083:45:379:2410:09
10:09
-0:01
40K
24.85 mi14:47:513:54:209:268:43
10:12
+0:03
25.2M
25.20 mi14:51:523:58:219:284:01
11:39
+1:27
Finish
26.22 mi15:01:444:08:139:289:52
9:41
-1:58

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

8:43 /mi

Average Pace

9:28 /mi

Slowest Pace

11:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:19:14

56% of race

Time at Steady Pace

1:33:44

38% of race

Time at Slower Pace

15:15

6% of race

Average Pace: 9:28 /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 mi11:20:3627:058:4327:05
8:43
#21092
10K
6.21 mi11:48:0254:318:4627:26
8:50
#21313
15K
9.32 mi12:15:571:22:268:5127:55
8:59
#21512
20K
12.43 mi12:44:241:50:538:5528:27
9:09
#21562
Half
13.11 mi12:50:261:56:558:556:02
8:51
#21538
25K
15.53 mi13:12:452:19:148:5822:19
9:12
#21395
30K
18.64 mi13:43:392:50:089:0830:54
9:57
#21434
20M
20.00 mi13:57:213:03:509:1113:42
10:05
#21420
21M
21.00 mi14:08:353:15:049:1711:14
11:14
#21491
35K
21.75 mi14:16:153:22:449:197:40
10:15
#21553
23M
23.00 mi14:28:593:35:289:2212:44
10:10
#21502
24M
24.00 mi14:39:083:45:379:2410:09
10:09
#21515
40K
24.85 mi14:47:513:54:209:268:43
10:12
#21491
25.2M
25.20 mi14:51:523:58:219:284:01
11:39
#21500
Finish
26.22 mi15:01:444:08:139:289:52
9:41
#21501
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi210928130813021975(Top 77%)8537(Top 70%)8537(Top 497%)
10K6.21 mi3.10 mi21313-2218223-938223-9321557(Top 76%)8345(Top 68%)8345(Top 486%)
15K9.32 mi3.11 mi21512-1998309-868309-8621975(Top 77%)8537(Top 70%)8537(Top 497%)
20K12.43 mi3.11 mi21562-508353-448353-4421723(Top 76%)8443(Top 69%)8443(Top 491%)
Half13.11 mi0.68 mi21538+248340+138340+1321160(Top 74%)8131(Top 66%)8131(Top 473%)
25K15.53 mi2.42 mi21395+1438270+708270+7020792(Top 73%)7973(Top 65%)7973(Top 464%)
30K18.64 mi3.11 mi21434-398324-548324-5421444(Top 75%)8478(Top 69%)8478(Top 493%)
20M20.00 mi1.36 mi21420+148337-138337-1321228(Top 75%)8485(Top 69%)8485(Top 494%)
21M21.00 mi1.00 mi21491-718388-518388-5122004(Top 77%)8968(Top 73%)8968(Top 522%)
35K21.75 mi0.75 mi21553-628431-438431-4322565(Top 79%)9313(Top 76%)9313(Top 542%)
23M23.00 mi1.25 mi21502+518434-38434-321035(Top 74%)8571(Top 70%)8571(Top 499%)
24M24.00 mi1.00 mi21515-138459-258459-2521806(Top 77%)9038(Top 74%)9038(Top 526%)
40K24.85 mi0.85 mi21491+248469-108469-1021075(Top 74%)8703(Top 71%)8703(Top 507%)
25.2M25.20 mi0.35 mi21500-98480-118480-1122460(Top 79%)9383(Top 77%)9383(Top 546%)
Finish26.22 mi1.02 mi21501-18497-178497-1721863(Top 77%)9088(Top 74%)9088(Top 529%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

21975

Females

8537

F40-44

8537

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

21557

Females

8345

F40-44

8345

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

21975

Females

8537

F40-44

8537

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

21723

Females

8443

F40-44

8443

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

21160

Females

8131

F40-44

8131

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

20792

Females

7973

F40-44

7973

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

21444

Females

8478

F40-44

8478

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

21228

Females

8485

F40-44

8485

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

22004

Females

8968

F40-44

8968

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

22565

Females

9313

F40-44

9313

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

21035

Females

8571

F40-44

8571

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

21806

Females

9038

F40-44

9038

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

21075

Females

8703

F40-44

8703

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

22460

Females

9383

F40-44

9383

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

21863

Females

9088

F40-44

9088

Passing Analysis

Category:
Athletes Passed
1440
Passed By
1849
Net Change
-409
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21092
5K → 10K188409-221#21092#21313
10K → 15K144343-199#21313#21512
15K → 20K181231-50#21512#21562
20K → Half4420+24#21562#21538
Half → 25K21875+143#21538#21395
25K → 30K182221-39#21395#21434
30K → 20M10591+14#21434#21420
20M → 21M52123-71#21420#21491
21M → 35K3294-62#21491#21553
35K → 23M10655+51#21553#21502
23M → 24M5467-13#21502#21515
24M → 40K6036+24#21515#21491
40K → 25.2M2332-9#21491#21500
25.2M → Finish5152-1#21500#21501
TOTALS14401849-409
📊

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