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BOSTON MARATHON 2025

Holly Loscavio

Bib: 23704•F

GA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
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
8:25/mi
26:08
↑ 97↓ 3451.5%
10K· 6.21 mi
8:32/mi
52:38
↑ 79↓ 1380.4%
15K· 9.32 mi
8:39/mi
1:19:30
↑ 67↓ 78
20K· 12.43 mi
8:51/mi
1:47:00
↑ 106↓ 860.1%
Half· 13.11 mi
8:39/mi
1:52:54
↑ 19↓ 370.5%
25K· 15.53 mi
9:04/mi
2:14:54
↑ 66↓ 880.2%
30K· 18.64 mi
9:37/mi
2:44:46
↑ 181↓ 1480.2%
20M
10:01/mi
2:58:23
↑ 64↓ 500.2%
21M
10:43/mi
3:09:06
↑ 106↓ 241.6%
35K· 21.75 mi
9:19/mi
3:16:04
↑ 17↓ 861.7%
23M
9:13/mi
3:27:36
↑ 23↓ 630.6%
24M
9:11/mi
3:36:47
↓ 821.3%
40K· 24.85 mi
9:20/mi
3:44:46
↓ 200.3%
25.2M
10:03/mi
3:48:14
↑ 13↓ 160.2%
Finish· 26.22 mi
9:01/mi
3:57:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:54
Pace8:37 /mi
2nd Half
Distance13.11 mi
Time2:04:31
Pace9:30 /mi
📊Positive Split: 10.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:5726:088:2526:08
8:25
-
10K
6.21 mi11:51:2752:388:2826:30
8:32
+0:07
15K
9.32 mi12:18:191:19:308:3226:52
8:39
+0:07
20K
12.43 mi12:45:491:47:008:3727:30
8:51
+0:12
Half
13.11 mi12:51:431:52:548:375:54
8:39
-0:12
25K
15.53 mi13:13:432:14:548:4122:00
9:04
+0:25
30K
18.64 mi13:43:352:44:468:5029:52
9:37
+0:33
20M
20.00 mi13:57:122:58:238:5513:37
10:01
+0:24
21M
21.00 mi14:07:553:09:069:0010:43
10:43
+0:42
35K
21.75 mi14:14:533:16:049:016:58
9:19
-1:24
23M
23.00 mi14:26:253:27:369:0211:32
9:13
-0:06
24M
24.00 mi14:35:363:36:479:029:11
9:11
-0:02
40K
24.85 mi14:43:353:44:469:037:59
9:20
+0:09
25.2M
25.20 mi14:47:033:48:149:033:28
10:03
+0:43
Finish
26.22 mi14:56:143:57:259:049:11
9:01
-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

8:25 /mi

Average Pace

9:04 /mi

Slowest Pace

10:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:54

48% of race

Time at Steady Pace

1:06:51

28% of race

Time at Slower Pace

57:40

24% of race

Average Pace: 9:03 /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 mi11:24:5726:088:2526:08
8:25
#19392
10K
6.21 mi11:51:2752:388:2826:30
8:32
#19654
15K
9.32 mi12:18:191:19:308:3226:52
8:39
#19861
20K
12.43 mi12:45:491:47:008:3727:30
8:51
#19924
Half
13.11 mi12:51:431:52:548:375:54
8:39
#19923
25K
15.53 mi13:13:432:14:548:4122:00
9:04
#19966
30K
18.64 mi13:43:352:44:468:5029:52
9:37
#20084
20M
20.00 mi13:57:122:58:238:5513:37
10:01
#20167
21M
21.00 mi14:07:553:09:069:0010:43
10:43
#20230
35K
21.75 mi14:14:533:16:049:016:58
9:19
#20191
23M
23.00 mi14:26:253:27:369:0211:32
9:13
#20041
24M
24.00 mi14:35:363:36:479:029:11
9:11
#19968
40K
24.85 mi14:43:353:44:469:037:59
9:20
#19886
25.2M
25.20 mi14:47:033:48:149:033:28
10:03
#19845
Finish
26.22 mi14:56:143:57:259:049:11
9:01
#19822
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi193927139713920205(Top 71%)7548(Top 62%)7548(Top 579%)
10K6.21 mi3.10 mi19654-2627272-1337272-13319985(Top 70%)7457(Top 61%)7457(Top 572%)
15K9.32 mi3.11 mi19861-2077387-1157387-11520205(Top 71%)7548(Top 62%)7548(Top 579%)
20K12.43 mi3.11 mi19924-637430-437430-4320232(Top 71%)7609(Top 62%)7609(Top 584%)
Half13.11 mi0.68 mi19923+17433-37433-320097(Top 71%)7537(Top 62%)7537(Top 578%)
25K15.53 mi2.42 mi19966-437464-317464-3120244(Top 71%)7671(Top 63%)7671(Top 589%)
30K18.64 mi3.11 mi20084-1187571-1077571-10720406(Top 72%)7879(Top 64%)7879(Top 605%)
20M20.00 mi1.36 mi20167-837650-797650-7921012(Top 74%)8361(Top 68%)8361(Top 642%)
21M21.00 mi1.00 mi20230-637711-617711-6120655(Top 73%)8271(Top 68%)8271(Top 635%)
35K21.75 mi0.75 mi20191+397701+107701+1019642(Top 69%)7790(Top 64%)7790(Top 598%)
23M23.00 mi1.25 mi20041+1507640+617640+6117410(Top 61%)6673(Top 55%)6673(Top 512%)
24M24.00 mi1.00 mi19968+737624+167624+1618297(Top 64%)7199(Top 59%)7199(Top 552%)
40K24.85 mi0.85 mi19886+827597+277597+2718048(Top 64%)7152(Top 58%)7152(Top 549%)
25.2M25.20 mi0.35 mi19845+417581+167581+1617333(Top 61%)6783(Top 55%)6783(Top 521%)
Finish26.22 mi1.02 mi19822+237582-17582-119134(Top 67%)7684(Top 63%)7684(Top 590%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

20205

Females

7548

F50-54

7548

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

19985

Females

7457

F50-54

7457

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

20205

Females

7548

F50-54

7548

15K→20K

9.3 - 12.4 mi

Top 71%
×5story building
+106ft-86ft

Overall

20232

Females

7609

F50-54

7609

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

20097

Females

7537

F50-54

7537

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

20244

Females

7671

F50-54

7671

25K→30K

15.5 - 18.6 mi

Top 72%
×9story building
+181ft-148ft

Overall

20406

Females

7879

F50-54

7879

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

21012

Females

8361

F50-54

8361

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

20655

Females

8271

F50-54

8271

21M→35K

21.0 - 21.8 mi

Top 69%
×7story building
+17ft-86ft

Overall

19642

Females

7790

F50-54

7790

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

17410

Females

6673

F50-54

6673

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

18297

Females

7199

F50-54

7199

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

18048

Females

7152

F50-54

7152

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17333

Females

6783

F50-54

6783

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2story building
+22ft-21ft

Overall

19134

Females

7684

F50-54

7684

Passing Analysis

Category:
Athletes Passed
1528
Passed By
1958
Net Change
-430
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19392
5K → 10K150412-262#19392#19654
10K → 15K138345-207#19654#19861
15K → 20K168231-63#19861#19924
20K → Half3130+1#19924#19923
Half → 25K150193-43#19923#19966
25K → 30K189307-118#19966#20084
30K → 20M78161-83#20084#20167
20M → 21M63126-63#20167#20230
21M → 35K7536+39#20230#20191
35K → 23M16010+150#20191#20041
23M → 24M9926+73#20041#19968
24M → 40K11432+82#19968#19886
40K → 25.2M465+41#19886#19845
25.2M → Finish6744+23#19845#19822
TOTALS15281958-430
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing