Boston Marathon logo
BOSTON MARATHON 2025

Emily Denunzio

Bib: 27326•F

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
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
9:02/mi
28:04
↑ 97↓ 3451.5%
10K· 6.21 mi
9:08/mi
56:26
↑ 79↓ 1380.4%
15K· 9.32 mi
9:09/mi
1:24:53
↑ 67↓ 78
20K· 12.43 mi
9:30/mi
1:54:23
↑ 106↓ 860.1%
Half· 13.11 mi
9:16/mi
2:00:42
↑ 19↓ 370.5%
25K· 15.53 mi
10:05/mi
2:25:08
↑ 66↓ 880.2%
30K· 18.64 mi
10:35/mi
2:58:00
↑ 181↓ 1480.2%
20M
12:31/mi
3:15:01
↑ 64↓ 500.2%
21M
11:02/mi
3:26:03
↑ 106↓ 241.6%
35K· 21.75 mi
10:06/mi
3:33:36
↑ 17↓ 861.7%
23M
11:13/mi
3:47:39
↑ 23↓ 630.6%
24M
10:03/mi
3:57:42
↓ 821.3%
40K· 24.85 mi
9:54/mi
4:06:10
↓ 200.3%
25.2M
10:18/mi
4:09:43
↑ 13↓ 160.2%
Finish· 26.22 mi
8:54/mi
4:18:47
↑ 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
Time2:00:42
Pace9:12 /mi
2nd Half
Distance13.11 mi
Time2:18:05
Pace10:32 /mi
📊Positive Split: 14.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:0828:049:0228:04
9:02
-
10K
6.21 mi12:15:3056:269:0528:22
9:08
+0:06
15K
9.32 mi12:43:571:24:539:0628:27
9:09
+0:01
20K
12.43 mi13:13:271:54:239:1229:30
9:30
+0:21
Half
13.11 mi13:19:462:00:429:126:19
9:16
-0:14
25K
15.53 mi13:44:122:25:089:2124:26
10:05
+0:49
30K
18.64 mi14:17:042:58:009:3332:52
10:35
+0:30
20M
20.00 mi14:34:053:15:019:4517:01
12:31
+1:56
21M
21.00 mi14:45:073:26:039:4911:02
11:02
-1:29
35K
21.75 mi14:52:403:33:369:497:33
10:06
-0:56
23M
23.00 mi15:06:433:47:399:5414:03
11:13
+1:07
24M
24.00 mi15:16:463:57:429:5410:03
10:03
-1:10
40K
24.85 mi15:25:144:06:109:548:28
9:54
-0:09
25.2M
25.20 mi15:28:474:09:439:553:33
10:18
+0:24
Finish
26.22 mi15:37:514:18:479:539:04
8:54
-1:24

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

8:54 /mi

Average Pace

9:53 /mi

Slowest Pace

12:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:46

50% of race

Time at Steady Pace

54:03

21% of race

Time at Slower Pace

1:14:58

29% of race

Average Pace: 9:52 /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 mi11:47:0828:049:0228:04
9:02
#22572
10K
6.21 mi12:15:3056:269:0528:22
9:08
#22750
15K
9.32 mi12:43:571:24:539:0628:27
9:09
#22727
20K
12.43 mi13:13:271:54:239:1229:30
9:30
#22804
Half
13.11 mi13:19:462:00:429:126:19
9:16
#22798
25K
15.53 mi13:44:122:25:089:2124:26
10:05
#22931
30K
18.64 mi14:17:042:58:009:3332:52
10:35
#22952
20M
20.00 mi14:34:053:15:019:4517:01
12:31
#23281
21M
21.00 mi14:45:073:26:039:4911:02
11:02
#23180
35K
21.75 mi14:52:403:33:369:497:33
10:06
#23142
23M
23.00 mi15:06:433:47:399:5414:03
11:13
#23193
24M
24.00 mi15:16:463:57:429:5410:03
10:03
#23110
40K
24.85 mi15:25:144:06:109:548:28
9:54
#22997
25.2M
25.20 mi15:28:474:09:439:553:33
10:18
#22943
Finish
26.22 mi15:37:514:18:479:539:04
8:54
#22808
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi225728947894722712(Top 80%)8952(Top 73%)8952(Top 164%)
10K6.21 mi3.10 mi22750-1789019-729019-7222933(Top 81%)9093(Top 74%)9093(Top 166%)
15K9.32 mi3.11 mi22727+238974+458974+4522712(Top 80%)8952(Top 73%)8952(Top 164%)
20K12.43 mi3.11 mi22804-779010-369010-3622892(Top 81%)9089(Top 74%)9089(Top 166%)
Half13.11 mi0.68 mi22798+69010901022844(Top 80%)9060(Top 74%)9060(Top 166%)
25K15.53 mi2.42 mi22931-1339106-969106-9623450(Top 83%)9453(Top 77%)9453(Top 173%)
30K18.64 mi3.11 mi22952-219157-519157-5123124(Top 81%)9392(Top 77%)9392(Top 172%)
20M20.00 mi1.36 mi23281-3299353-1969353-19625933(Top 91%)10980(Top 90%)10980(Top 201%)
21M21.00 mi1.00 mi23180+1019321+329321+3221511(Top 76%)8713(Top 71%)8713(Top 159%)
35K21.75 mi0.75 mi23142+389307+149307+1422170(Top 78%)9121(Top 75%)9121(Top 167%)
23M23.00 mi1.25 mi23193-519373-669373-6623719(Top 84%)9965(Top 81%)9965(Top 182%)
24M24.00 mi1.00 mi23110+839351+229351+2221511(Top 76%)8863(Top 72%)8863(Top 162%)
40K24.85 mi0.85 mi22997+1139306+459306+4520155(Top 71%)8243(Top 67%)8243(Top 151%)
25.2M25.20 mi0.35 mi22943+549286+209286+2018349(Top 65%)7337(Top 60%)7337(Top 134%)
Finish26.22 mi1.02 mi22808+1359226+609226+6018556(Top 65%)7370(Top 60%)7370(Top 135%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

22712

Females

8952

F18-39

8952

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

22933

Females

9093

F18-39

9093

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

22712

Females

8952

F18-39

8952

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

22892

Females

9089

F18-39

9089

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

22844

Females

9060

F18-39

9060

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

23450

Females

9453

F18-39

9453

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

23124

Females

9392

F18-39

9392

30K→20M

18.6 - 20.0 mi

Top 91%
×5story building
+64ft-50ft

Overall

25933

Females

10980

F18-39

10980

20M→21M

20.0 - 21.0 mi

Top 76%
×8story building
+106ft-24ft

Overall

21511

Females

8713

F18-39

8713

21M→35K

21.0 - 21.8 mi

Top 78%
×7story building
+17ft-86ft

Overall

22170

Females

9121

F18-39

9121

35K→23M

21.8 - 23.0 mi

Top 84%
×5story building
+23ft-63ft

Overall

23719

Females

9965

F18-39

9965

23M→24M

23.0 - 24.0 mi

Top 76%
×6story building
+12ft-82ft

Overall

21511

Females

8863

F18-39

8863

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

20155

Females

8243

F18-39

8243

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18349

Females

7337

F18-39

7337

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2story building
+22ft-21ft

Overall

18556

Females

7370

F18-39

7370

Passing Analysis

Category:
Athletes Passed
1469
Passed By
1705
Net Change
-236
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22572
5K → 10K172350-178#22572#22750
10K → 15K186163+23#22750#22727
15K → 20K158235-77#22727#22804
20K → Half3731+6#22804#22798
Half → 25K97230-133#22798#22931
25K → 30K150171-21#22931#22952
30K → 20M22351-329#22952#23281
20M → 21M12019+101#23281#23180
21M → 35K6022+38#23180#23142
35K → 23M58109-51#23142#23193
23M → 24M9613+83#23193#23110
24M → 40K1185+113#23110#22997
40K → 25.2M551+54#22997#22943
25.2M → Finish1405+135#22943#22808
TOTALS14691705-236
📊

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