Boston Marathon logo
BOSTON MARATHON 2025

Lea Ivy

Bib: 8437•F

TX

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 38%
Masters (Masters Women)
#0 / 6759
Top 24%
Division (F50-54)
#0 / 1303
Top 15%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:18
Rank: #17684
Start → 5K
25:18 | 8:09/mi
10K· 6.21 mi
50:08
Rank: #17029 (+655)
5K → 10K
24:50 | 8:00/mi
15K· 9.32 mi
1:14:50
Rank: #16549 (+480)
10K → 15K
24:42 | 7:57/mi
20K· 12.43 mi
1:40:04
Rank: #16325 (+224)
15K → 20K
25:14 | 8:07/mi
Half· 13.11 mi
1:45:16
Rank: #16169 (+156)
20K → Half
5:12 | 7:37/mi
25K· 15.53 mi
2:04:39
Rank: #15747 (+422)
Half → 25K
19:23 | 8:00/mi
30K· 18.64 mi
2:31:30
Rank: #15724 (+23)
25K → 30K
26:51 | 8:39/mi
20M
2:43:15
Rank: #15573 (+151)
30K → 20M
11:45 | 8:39/mi
21M
2:52:21
Rank: #15448 (+125)
20M → 21M
9:06 | 9:06/mi
35K· 21.75 mi
2:58:33
Rank: #15373 (+75)
21M → 35K
6:12 | 8:17/mi
23M
3:08:53
Rank: #15121 (+252)
35K → 23M
10:20 | 8:15/mi
24M
3:17:06
Rank: #14968 (+153)
23M → 24M
8:13 | 8:13/mi
40K· 24.85 mi
3:24:05
Rank: #14819 (+149)
24M → 40K
6:59 | 8:10/mi
25.2M
3:27:12
Rank: #14766 (+53)
40K → 25.2M
3:07 | 9:02/mi
Finish· 26.22 mi
3:35:21
Rank: #14649 (+117)
25.2M → Finish
8:09 | 8:00/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
Time1:45:16
Pace8:02 /mi
2nd Half
Distance13.11 mi
Time1:50:05
Pace8:24 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:33:5525:188:0925:18
8:09
-
10K
6.21 mi10:58:4550:088:0424:50
8:00
-0:09
15K
9.32 mi11:23:271:14:508:0224:42
7:57
-0:03
20K
12.43 mi11:48:411:40:048:0325:14
8:07
+0:10
Half
13.11 mi11:53:531:45:168:025:12
7:37
-0:30
25K
15.53 mi12:13:162:04:398:0119:23
8:00
+0:23
30K
18.64 mi12:40:072:31:308:0826:51
8:39
+0:39
20M
20.00 mi12:51:522:43:158:1011:45
8:39
0:00
21M
21.00 mi13:00:582:52:218:129:06
9:06
+0:27
35K
21.75 mi13:07:102:58:338:136:12
8:17
-0:49
23M
23.00 mi13:17:303:08:538:1310:20
8:15
-0:02
24M
24.00 mi13:25:433:17:068:138:13
8:13
-0:02
40K
24.85 mi13:32:423:24:058:136:59
8:10
-0:03
25.2M
25.20 mi13:35:493:27:128:133:07
9:02
+0:52
Finish
26.22 mi13:43:583:35:218:138:09
8:00
-1:02

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

7:37 /mi

Average Pace

8:13 /mi

Slowest Pace

9:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:32

76% of race

Time at Steady Pace

38:36

18% of race

Time at Slower Pace

12:13

6% of race

Average Pace: 8:13 /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 mi10:33:5525:188:0925:18
8:09
#17684
10K
6.21 mi10:58:4550:088:0424:50
8:00
#17029
15K
9.32 mi11:23:271:14:508:0224:42
7:57
#16549
20K
12.43 mi11:48:411:40:048:0325:14
8:07
#16325
Half
13.11 mi11:53:531:45:168:025:12
7:37
#16169
25K
15.53 mi12:13:162:04:398:0119:23
8:00
#15747
30K
18.64 mi12:40:072:31:308:0826:51
8:39
#15724
20M
20.00 mi12:51:522:43:158:1011:45
8:39
#15573
21M
21.00 mi13:00:582:52:218:129:06
9:06
#15448
35K
21.75 mi13:07:102:58:338:136:12
8:17
#15373
23M
23.00 mi13:17:303:08:538:1310:20
8:15
#15121
24M
24.00 mi13:25:433:17:068:138:13
8:13
#14968
40K
24.85 mi13:32:423:24:058:136:59
8:10
#14819
25.2M
25.20 mi13:35:493:27:128:133:07
9:02
#14766
Finish
26.22 mi13:43:583:35:218:138:09
8:00
#14649
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi176846140614015671(Top 55%)4950(Top 40%)4950(Top 380%)
10K6.21 mi3.10 mi17029+6555742+3985742+39816436(Top 58%)5386(Top 44%)5386(Top 413%)
15K9.32 mi3.11 mi16549+4805457+2855457+28515671(Top 55%)4950(Top 40%)4950(Top 380%)
20K12.43 mi3.11 mi16325+2245336+1215336+12115802(Top 56%)5096(Top 42%)5096(Top 391%)
Half13.11 mi0.68 mi16169+1565258+785258+7812867(Top 45%)3446(Top 28%)3446(Top 264%)
25K15.53 mi2.42 mi15747+4225020+2385020+23813864(Top 49%)4144(Top 34%)4144(Top 318%)
30K18.64 mi3.11 mi15724+235069-495069-4915647(Top 55%)5250(Top 43%)5250(Top 403%)
20M20.00 mi1.36 mi15573+1515015+545015+5414716(Top 52%)4891(Top 40%)4891(Top 375%)
21M21.00 mi1.00 mi15448+1254980+354980+3514129(Top 50%)4702(Top 38%)4702(Top 361%)
35K21.75 mi0.75 mi15373+754955+254955+2514205(Top 50%)4793(Top 39%)4793(Top 368%)
23M23.00 mi1.25 mi15121+2524838+1174838+11711765(Top 41%)3625(Top 30%)3625(Top 278%)
24M24.00 mi1.00 mi14968+1534783+554783+5512732(Top 45%)4187(Top 34%)4187(Top 321%)
40K24.85 mi0.85 mi14819+1494731+524731+5211409(Top 40%)3618(Top 30%)3618(Top 278%)
25.2M25.20 mi0.35 mi14766+534703+284703+2812093(Top 43%)4034(Top 33%)4034(Top 310%)
Finish26.22 mi1.02 mi14649+1174673+304673+3012895(Top 45%)4378(Top 36%)4378(Top 336%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

15671

Females

4950

F50-54

4950

5K→10K

3.1 - 6.2 mi

Top 58%
×5stories
+79ft-138ft

Overall

16436

Females

5386

F50-54

5386

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

15671

Females

4950

F50-54

4950

15K→20K

9.3 - 12.4 mi

Top 56%
×5stories
+106ft-86ft

Overall

15802

Females

5096

F50-54

5096

20K→Half

12.4 - 13.1 mi

Top 45%
×2stories
+19ft-37ft

Overall

12867

Females

3446

F50-54

3446

Half→25K

13.1 - 15.5 mi

Top 49%
×4stories
+66ft-88ft

Overall

13864

Females

4144

F50-54

4144

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

15647

Females

5250

F50-54

5250

30K→20M

18.6 - 20.0 mi

Top 52%
×5stories
+64ft-50ft

Overall

14716

Females

4891

F50-54

4891

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

14129

Females

4702

F50-54

4702

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

14205

Females

4793

F50-54

4793

35K→23M

21.8 - 23.0 mi

Top 41%
×5stories
+23ft-63ft

Overall

11765

Females

3625

F50-54

3625

23M→24M

23.0 - 24.0 mi

Top 45%
×6stories
+12ft-82ft

Overall

12732

Females

4187

F50-54

4187

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11409

Females

3618

F50-54

3618

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

12093

Females

4034

F50-54

4034

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2stories
+22ft-21ft

Overall

12895

Females

4378

F50-54

4378

Passing Analysis

Category:
Athletes Passed
3678
Passed By
643
Net Change
+3035
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17684
5K → 10K74590+655#17684#17029
10K → 15K50828+480#17029#16549
15K → 20K327103+224#16549#16325
20K → Half1571+156#16325#16169
Half → 25K43210+422#16169#15747
25K → 30K242219+23#15747#15724
30K → 20M19645+151#15724#15573
20M → 21M17954+125#15573#15448
21M → 35K9924+75#15448#15373
35K → 23M2608+252#15373#15121
23M → 24M17522+153#15121#14968
24M → 40K1578+149#14968#14819
40K → 25.2M629+53#14819#14766
25.2M → Finish13922+117#14766#14649
TOTALS3678643+3035
📊

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