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BOSTON MARATHON 2025

Junia Larsen

Bib: 19253•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 42%
Masters (Masters Women)
#0 / 6759
Top 28%
Division (F45-49)
#0 / 1813
Top 34%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:24
Rank: #17943
Start → 5K
25:24 | 8:11/mi
10K· 6.21 mi
50:47
Rank: #17789 (+154)
5K → 10K
25:23 | 8:10/mi
15K· 9.32 mi
1:16:33
Rank: #17836 (-47)
10K → 15K
25:46 | 8:18/mi
20K· 12.43 mi
1:42:22
Rank: #17596 (+240)
15K → 20K
25:49 | 8:19/mi
Half· 13.11 mi
1:47:54
Rank: #17534 (+62)
20K → Half
5:32 | 8:07/mi
25K· 15.53 mi
2:07:54
Rank: #17169 (+365)
Half → 25K
20:00 | 8:15/mi
30K· 18.64 mi
2:34:21
Rank: #16716 (+453)
25K → 30K
26:27 | 8:31/mi
20M
2:45:50
Rank: #16451 (+265)
30K → 20M
11:29 | 8:27/mi
21M
2:54:40
Rank: #16199 (+252)
20M → 21M
8:50 | 8:50/mi
35K· 21.75 mi
3:00:42
Rank: #16039 (+160)
21M → 35K
6:02 | 8:04/mi
23M
3:11:13
Rank: #15768 (+271)
35K → 23M
10:31 | 8:24/mi
24M
3:19:22
Rank: #15616 (+152)
23M → 24M
8:09 | 8:09/mi
40K· 24.85 mi
3:26:30
Rank: #15487 (+129)
24M → 40K
7:08 | 8:21/mi
25.2M
3:29:36
Rank: #15421 (+66)
40K → 25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:38:12
Rank: #15418 (+3)
25.2M → Finish
8:36 | 8:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:54
Pace8:14 /mi
2nd Half
Distance13.11 mi
Time1:50:18
Pace8:25 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:40:5725:248:1125:24
8:11
-
10K
6.21 mi12:06:2050:478:1025:23
8:10
-0:01
15K
9.32 mi12:32:061:16:338:1325:46
8:18
+0:08
20K
12.43 mi12:57:551:42:228:1425:49
8:19
+0:01
Half
13.11 mi13:03:271:47:548:145:32
8:07
-0:12
25K
15.53 mi13:23:272:07:548:1420:00
8:15
+0:08
30K
18.64 mi13:49:542:34:218:1726:27
8:31
+0:16
20M
20.00 mi14:01:232:45:508:1711:29
8:27
-0:04
21M
21.00 mi14:10:132:54:408:198:50
8:50
+0:23
35K
21.75 mi14:16:153:00:428:196:02
8:04
-0:46
23M
23.00 mi14:26:463:11:138:1910:31
8:24
+0:20
24M
24.00 mi14:34:553:19:228:188:09
8:09
-0:15
40K
24.85 mi14:42:033:26:308:187:08
8:21
+0:12
25.2M
25.20 mi14:45:093:29:368:193:06
8:59
+0:38
Finish
26.22 mi14:53:453:38:128:208:36
8:26
-0:33

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

8:04 /mi

Average Pace

8:20 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:35:06

99% of race

Time at Steady Pace

3:06

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:19 /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 mi11:40:5725:248:1125:24
8:11
#17943
10K
6.21 mi12:06:2050:478:1025:23
8:10
#17789
15K
9.32 mi12:32:061:16:338:1325:46
8:18
#17836
20K
12.43 mi12:57:551:42:228:1425:49
8:19
#17596
Half
13.11 mi13:03:271:47:548:145:32
8:07
#17534
25K
15.53 mi13:23:272:07:548:1420:00
8:15
#17169
30K
18.64 mi13:49:542:34:218:1726:27
8:31
#16716
20M
20.00 mi14:01:232:45:508:1711:29
8:27
#16451
21M
21.00 mi14:10:132:54:408:198:50
8:50
#16199
35K
21.75 mi14:16:153:00:428:196:02
8:04
#16039
23M
23.00 mi14:26:463:11:138:1910:31
8:24
#15768
24M
24.00 mi14:34:553:19:228:188:09
8:09
#15616
40K
24.85 mi14:42:033:26:308:187:08
8:21
#15487
25.2M
25.20 mi14:45:093:29:368:193:06
8:59
#15421
Finish
26.22 mi14:53:453:38:128:208:36
8:26
#15418
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi179436305630518008(Top 63%)6319(Top 52%)6319(Top 349%)
10K6.21 mi3.10 mi17789+1546199+1066199+10617695(Top 62%)6111(Top 50%)6111(Top 337%)
15K9.32 mi3.11 mi17836-476229-306229-3018008(Top 63%)6319(Top 52%)6319(Top 349%)
20K12.43 mi3.11 mi17596+2406095+1346095+13416992(Top 60%)5766(Top 47%)5766(Top 318%)
Half13.11 mi0.68 mi17534+626052+436052+4316703(Top 59%)5578(Top 46%)5578(Top 308%)
25K15.53 mi2.42 mi17169+3655866+1865866+18615622(Top 55%)5082(Top 42%)5082(Top 280%)
30K18.64 mi3.11 mi16716+4535647+2195647+21914852(Top 52%)4824(Top 39%)4824(Top 266%)
20M20.00 mi1.36 mi16451+2655529+1185529+11813501(Top 48%)4252(Top 35%)4252(Top 235%)
21M21.00 mi1.00 mi16199+2525408+1215408+12112561(Top 44%)3908(Top 32%)3908(Top 216%)
35K21.75 mi0.75 mi16039+1605347+615347+6112756(Top 45%)4039(Top 33%)4039(Top 223%)
23M23.00 mi1.25 mi15768+2715236+1115236+11112727(Top 45%)4125(Top 34%)4125(Top 228%)
24M24.00 mi1.00 mi15616+1525162+745162+7412276(Top 43%)3946(Top 32%)3946(Top 218%)
40K24.85 mi0.85 mi15487+1295120+425120+4212471(Top 44%)4180(Top 34%)4180(Top 231%)
25.2M25.20 mi0.35 mi15421+665093+275093+2711841(Top 42%)3917(Top 32%)3917(Top 216%)
Finish26.22 mi1.02 mi15418+35114-215114-2115842(Top 56%)5931(Top 49%)5931(Top 327%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21stories
+97ft-345ft

Overall

18008

Females

6319

F45-49

6319

5K→10K

3.1 - 6.2 mi

Top 62%
×5stories
+79ft-138ft

Overall

17695

Females

6111

F45-49

6111

10K→15K

6.2 - 9.3 mi

Top 63%
×3stories
+67ft-78ft

Overall

18008

Females

6319

F45-49

6319

15K→20K

9.3 - 12.4 mi

Top 60%
×5stories
+106ft-86ft

Overall

16992

Females

5766

F45-49

5766

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

16703

Females

5578

F45-49

5578

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

15622

Females

5082

F45-49

5082

25K→30K

15.5 - 18.6 mi

Top 52%
×9stories
+181ft-148ft

Overall

14852

Females

4824

F45-49

4824

30K→20M

18.6 - 20.0 mi

Top 48%
×5stories
+64ft-50ft

Overall

13501

Females

4252

F45-49

4252

20M→21M

20.0 - 21.0 mi

Top 44%
×8stories
+106ft-24ft

Overall

12561

Females

3908

F45-49

3908

21M→35K

21.0 - 21.8 mi

Top 45%
×7stories
+17ft-86ft

Overall

12756

Females

4039

F45-49

4039

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

12727

Females

4125

F45-49

4125

23M→24M

23.0 - 24.0 mi

Top 43%
×6stories
+12ft-82ft

Overall

12276

Females

3946

F45-49

3946

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12471

Females

4180

F45-49

4180

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11841

Females

3917

F45-49

3917

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

15842

Females

5931

F45-49

5931

Passing Analysis

Category:
Athletes Passed
3202
Passed By
677
Net Change
+2525
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17943
5K → 10K362208+154#17943#17789
10K → 15K176223-47#17789#17836
15K → 20K31474+240#17836#17596
20K → Half7412+62#17596#17534
Half → 25K38924+365#17534#17169
25K → 30K48330+453#17169#16716
30K → 20M2749+265#16716#16451
20M → 21M26311+252#16451#16199
21M → 35K1644+160#16199#16039
35K → 23M2765+271#16039#15768
23M → 24M1575+152#15768#15616
24M → 40K14112+129#15616#15487
40K → 25.2M671+66#15487#15421
25.2M → Finish6259+3#15421#15418
TOTALS3202677+2525
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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