Boston Marathon logo
BOSTON MARATHON 2025

Eleanor Leffler

Bib: 15412•F

TX

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 43%
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
24:04
Rank: #14367
Start → 5K
24:04 | 7:45/mi
10K· 6.21 mi
48:06
Rank: #14263 (+104)
5K → 10K
24:02 | 7:44/mi
15K· 9.32 mi
1:12:26
Rank: #14394 (-131)
10K → 15K
24:20 | 7:50/mi
20K· 12.43 mi
1:37:25
Rank: #14577 (-183)
15K → 20K
24:59 | 8:02/mi
Half· 13.11 mi
1:42:55
Rank: #14679 (-102)
20K → Half
5:30 | 8:04/mi
25K· 15.53 mi
2:03:38
Rank: #15237 (-558)
Half → 25K
20:43 | 8:33/mi
30K· 18.64 mi
2:31:51
Rank: #15845 (-608)
25K → 30K
28:13 | 9:05/mi
20M
2:44:09
Rank: #15922 (-77)
30K → 20M
12:18 | 9:03/mi
21M
2:53:25
Rank: #15805 (+117)
20M → 21M
9:16 | 9:16/mi
35K· 21.75 mi
2:59:53
Rank: #15774 (+31)
21M → 35K
6:28 | 8:39/mi
23M
3:11:07
Rank: #15742 (+32)
35K → 23M
11:14 | 8:58/mi
24M
3:20:02
Rank: #15798 (-56)
23M → 24M
8:55 | 8:55/mi
40K· 24.85 mi
3:27:36
Rank: #15761 (+37)
24M → 40K
7:34 | 8:51/mi
25.2M
3:31:04
Rank: #15782 (-21)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
3:39:07
Rank: #15655 (+127)
25.2M → Finish
8:03 | 7:54/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
Time1:42:55
Pace7:51 /mi
2nd Half
Distance13.11 mi
Time1:56:12
Pace8:52 /mi
📊Positive Split: 12.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:0824:047:4524:04
7:45
-
10K
6.21 mi11:21:1048:067:4424:02
7:44
-0:01
15K
9.32 mi11:45:301:12:267:4624:20
7:50
+0:06
20K
12.43 mi12:10:291:37:257:5024:59
8:02
+0:12
Half
13.11 mi12:15:591:42:557:515:30
8:04
+0:02
25K
15.53 mi12:36:422:03:387:5820:43
8:33
+0:29
30K
18.64 mi13:04:552:31:518:0928:13
9:05
+0:32
20M
20.00 mi13:17:132:44:098:1212:18
9:03
-0:02
21M
21.00 mi13:26:292:53:258:159:16
9:16
+0:13
35K
21.75 mi13:32:572:59:538:166:28
8:39
-0:37
23M
23.00 mi13:44:113:11:078:1911:14
8:58
+0:19
24M
24.00 mi13:53:063:20:028:208:55
8:55
-0:03
40K
24.85 mi14:00:403:27:368:217:34
8:51
-0:04
25.2M
25.20 mi14:04:083:31:048:233:28
10:03
+1:12
Finish
26.22 mi14:12:113:39:078:228:03
7:54
-2:09

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

7:44 /mi

Average Pace

8:22 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50:58

51% of race

Time at Steady Pace

54:54

25% of race

Time at Slower Pace

53:15

24% of race

Average Pace: 8:21 /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 mi10:57:0824:047:4524:04
7:45
#14367
10K
6.21 mi11:21:1048:067:4424:02
7:44
#14263
15K
9.32 mi11:45:301:12:267:4624:20
7:50
#14394
20K
12.43 mi12:10:291:37:257:5024:59
8:02
#14577
Half
13.11 mi12:15:591:42:557:515:30
8:04
#14679
25K
15.53 mi12:36:422:03:387:5820:43
8:33
#15237
30K
18.64 mi13:04:552:31:518:0928:13
9:05
#15845
20M
20.00 mi13:17:132:44:098:1212:18
9:03
#15922
21M
21.00 mi13:26:292:53:258:159:16
9:16
#15805
35K
21.75 mi13:32:572:59:538:166:28
8:39
#15774
23M
23.00 mi13:44:113:11:078:1911:14
8:58
#15742
24M
24.00 mi13:53:063:20:028:208:55
8:55
#15798
40K
24.85 mi14:00:403:27:368:217:34
8:51
#15761
25.2M
25.20 mi14:04:083:31:048:233:28
10:03
#15782
Finish
26.22 mi14:12:113:39:078:228:03
7:54
#15655
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi143674142414214671(Top 52%)4402(Top 36%)4402(Top 80%)
10K6.21 mi3.10 mi14263+1044096+464096+4614230(Top 50%)4101(Top 34%)4101(Top 75%)
15K9.32 mi3.11 mi14394-1314197-1014197-10114671(Top 52%)4402(Top 36%)4402(Top 80%)
20K12.43 mi3.11 mi14577-1834332-1354332-13515232(Top 54%)4771(Top 39%)4771(Top 87%)
Half13.11 mi0.68 mi14679-1024398-664398-6616413(Top 58%)5418(Top 44%)5418(Top 99%)
25K15.53 mi2.42 mi15237-5584743-3454743-34517453(Top 61%)6109(Top 50%)6109(Top 112%)
30K18.64 mi3.11 mi15845-6085133-3905133-39018102(Top 64%)6633(Top 54%)6633(Top 121%)
20M20.00 mi1.36 mi15922-775223-905223-9017073(Top 60%)6175(Top 50%)6175(Top 113%)
21M21.00 mi1.00 mi15805+1175195+285195+2814987(Top 53%)5170(Top 42%)5170(Top 95%)
35K21.75 mi0.75 mi15774+315197-25197-216341(Top 58%)5961(Top 49%)5961(Top 109%)
23M23.00 mi1.25 mi15742+325217-205217-2016113(Top 57%)5947(Top 49%)5947(Top 109%)
24M24.00 mi1.00 mi15798-565268-515268-5116941(Top 60%)6465(Top 53%)6465(Top 118%)
40K24.85 mi0.85 mi15761+375268526815487(Top 55%)5792(Top 47%)5792(Top 106%)
25.2M25.20 mi0.35 mi15782-215294-265294-2617281(Top 61%)6731(Top 55%)6731(Top 123%)
Finish26.22 mi1.02 mi15655+1275242+525242+5212213(Top 43%)4050(Top 33%)4050(Top 74%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

14671

Females

4402

F18-39

4402

5K→10K

3.1 - 6.2 mi

Top 50%
×5stories
+79ft-138ft

Overall

14230

Females

4101

F18-39

4101

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

14671

Females

4402

F18-39

4402

15K→20K

9.3 - 12.4 mi

Top 54%
×5stories
+106ft-86ft

Overall

15232

Females

4771

F18-39

4771

20K→Half

12.4 - 13.1 mi

Top 58%
×2stories
+19ft-37ft

Overall

16413

Females

5418

F18-39

5418

Half→25K

13.1 - 15.5 mi

Top 61%
×4stories
+66ft-88ft

Overall

17453

Females

6109

F18-39

6109

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

18102

Females

6633

F18-39

6633

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

17073

Females

6175

F18-39

6175

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

14987

Females

5170

F18-39

5170

21M→35K

21.0 - 21.8 mi

Top 58%
×7stories
+17ft-86ft

Overall

16341

Females

5961

F18-39

5961

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

16113

Females

5947

F18-39

5947

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

16941

Females

6465

F18-39

6465

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

15487

Females

5792

F18-39

5792

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17281

Females

6731

F18-39

6731

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2stories
+22ft-21ft

Overall

12213

Females

4050

F18-39

4050

Passing Analysis

Category:
Athletes Passed
1599
Passed By
2887
Net Change
-1288
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14367
5K → 10K336232+104#14367#14263
10K → 15K162293-131#14263#14394
15K → 20K146329-183#14394#14577
20K → Half16118-102#14577#14679
Half → 25K65623-558#14679#15237
25K → 30K101709-608#15237#15845
30K → 20M91168-77#15845#15922
20M → 21M17154+117#15922#15805
21M → 35K8150+31#15805#15774
35K → 23M11583+32#15774#15742
23M → 24M48104-56#15742#15798
24M → 40K9861+37#15798#15761
40K → 25.2M2950-21#15761#15782
25.2M → Finish14013+127#15782#15655
TOTALS15992887-1288
📊

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