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BOSTON MARATHON 2025

Brianna Dibble

Bib: 19381•F

MN

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 41%
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
8:15/mi
25:39
↑ 97↓ 3451.5%
10K· 6.21 mi
8:07/mi
50:53
↑ 79↓ 1380.4%
15K· 9.32 mi
8:02/mi
1:15:50
↑ 67↓ 78
20K· 12.43 mi
8:07/mi
1:41:03
↑ 106↓ 860.1%
Half· 13.11 mi
8:02/mi
1:46:32
↑ 19↓ 370.5%
25K· 15.53 mi
8:15/mi
2:06:31
↑ 66↓ 880.2%
30K· 18.64 mi
8:31/mi
2:32:58
↑ 181↓ 1480.2%
20M
8:38/mi
2:44:42
↑ 64↓ 500.2%
21M
9:04/mi
2:53:46
↑ 106↓ 241.6%
35K· 21.75 mi
8:21/mi
3:00:01
↑ 17↓ 861.7%
23M
8:32/mi
3:10:42
↑ 23↓ 630.6%
24M
8:21/mi
3:19:03
↓ 821.3%
40K· 24.85 mi
8:23/mi
3:26:13
↓ 200.3%
25.2M
9:20/mi
3:29:26
↑ 13↓ 160.2%
Finish· 26.22 mi
8:15/mi
3:37:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:32
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time1:51:18
Pace8:29 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:3225:398:1525:39
8:15
-
10K
6.21 mi11:42:4650:538:1125:14
8:07
-0:08
15K
9.32 mi12:07:431:15:508:0824:57
8:02
-0:05
20K
12.43 mi12:32:561:41:038:0825:13
8:07
+0:05
Half
13.11 mi12:38:251:46:328:085:29
8:02
-0:05
25K
15.53 mi12:58:242:06:318:0919:59
8:15
+0:13
30K
18.64 mi13:24:512:32:588:1226:27
8:31
+0:16
20M
20.00 mi13:36:352:44:428:1411:44
8:38
+0:07
21M
21.00 mi13:45:392:53:468:169:04
9:04
+0:26
35K
21.75 mi13:51:543:00:018:176:15
8:21
-0:43
23M
23.00 mi14:02:353:10:428:1710:41
8:32
+0:11
24M
24.00 mi14:10:563:19:038:188:21
8:21
-0:11
40K
24.85 mi14:18:063:26:138:187:10
8:23
+0:02
25.2M
25.20 mi14:21:193:29:268:193:13
9:20
+0:57
Finish
26.22 mi14:29:433:37:508:198:24
8:15
-1:05

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

8:02 /mi

Average Pace

8:19 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:25:33

94% of race

Time at Steady Pace

12:17

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:18 /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 mi11:17:3225:398:1525:39
8:15
#18456
10K
6.21 mi11:42:4650:538:1125:14
8:07
#17901
15K
9.32 mi12:07:431:15:508:0824:57
8:02
#17338
20K
12.43 mi12:32:561:41:038:0825:13
8:07
#16907
Half
13.11 mi12:38:251:46:328:085:29
8:02
#16871
25K
15.53 mi12:58:242:06:318:0919:59
8:15
#16599
30K
18.64 mi13:24:512:32:588:1226:27
8:31
#16250
20M
20.00 mi13:36:352:44:428:1411:44
8:38
#16102
21M
21.00 mi13:45:392:53:468:169:04
9:04
#15908
35K
21.75 mi13:51:543:00:018:176:15
8:21
#15806
23M
23.00 mi14:02:353:10:428:1710:41
8:32
#15656
24M
24.00 mi14:10:563:19:038:188:21
8:21
#15548
40K
24.85 mi14:18:063:26:138:187:10
8:23
#15422
25.2M
25.20 mi14:21:193:29:268:193:13
9:20
#15383
Finish
26.22 mi14:29:433:37:508:198:24
8:15
#15345
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi184566607660716288(Top 57%)5308(Top 43%)5308(Top 97%)
10K6.21 mi3.10 mi17901+5556267+3406267+34017369(Top 61%)5917(Top 48%)5917(Top 108%)
15K9.32 mi3.11 mi17338+5635916+3515916+35116288(Top 57%)5308(Top 43%)5308(Top 97%)
20K12.43 mi3.11 mi16907+4315683+2335683+23315765(Top 56%)5074(Top 41%)5074(Top 93%)
Half13.11 mi0.68 mi16871+365659+245659+2416229(Top 57%)5316(Top 43%)5316(Top 97%)
25K15.53 mi2.42 mi16599+2725523+1365523+13615580(Top 55%)5064(Top 41%)5064(Top 93%)
30K18.64 mi3.11 mi16250+3495378+1455378+14514851(Top 52%)4823(Top 39%)4823(Top 88%)
20M20.00 mi1.36 mi16102+1485324+545324+5414658(Top 52%)4857(Top 40%)4857(Top 89%)
21M21.00 mi1.00 mi15908+1945254+705254+7013935(Top 49%)4604(Top 38%)4604(Top 84%)
35K21.75 mi0.75 mi15806+1025210+445210+4414635(Top 52%)5038(Top 41%)5038(Top 92%)
23M23.00 mi1.25 mi15656+1505165+455165+4513546(Top 48%)4552(Top 37%)4552(Top 83%)
24M24.00 mi1.00 mi15548+1085116+495116+4913596(Top 48%)4619(Top 38%)4619(Top 84%)
40K24.85 mi0.85 mi15422+1265082+345082+3412732(Top 45%)4306(Top 35%)4306(Top 79%)
25.2M25.20 mi0.35 mi15383+395070+125070+1213675(Top 48%)4855(Top 40%)4855(Top 89%)
Finish26.22 mi1.02 mi15345+385071-15071-114583(Top 51%)5251(Top 43%)5251(Top 96%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21story building
+97ft-345ft

Overall

16288

Females

5308

F18-39

5308

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

17369

Females

5917

F18-39

5917

10K→15K

6.2 - 9.3 mi

Top 57%
×3story building
+67ft-78ft

Overall

16288

Females

5308

F18-39

5308

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

15765

Females

5074

F18-39

5074

20K→Half

12.4 - 13.1 mi

Top 57%
×2story building
+19ft-37ft

Overall

16229

Females

5316

F18-39

5316

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

15580

Females

5064

F18-39

5064

25K→30K

15.5 - 18.6 mi

Top 52%
×9story building
+181ft-148ft

Overall

14851

Females

4823

F18-39

4823

30K→20M

18.6 - 20.0 mi

Top 52%
×5story building
+64ft-50ft

Overall

14658

Females

4857

F18-39

4857

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

13935

Females

4604

F18-39

4604

21M→35K

21.0 - 21.8 mi

Top 52%
×7story building
+17ft-86ft

Overall

14635

Females

5038

F18-39

5038

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

13546

Females

4552

F18-39

4552

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

13596

Females

4619

F18-39

4619

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12732

Females

4306

F18-39

4306

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13675

Females

4855

F18-39

4855

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

14583

Females

5251

F18-39

5251

Passing Analysis

Category:
Athletes Passed
3567
Passed By
456
Net Change
+3111
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18456
5K → 10K64893+555#18456#17901
10K → 15K59330+563#17901#17338
15K → 20K45524+431#17338#16907
20K → Half5418+36#16907#16871
Half → 25K30634+272#16871#16599
25K → 30K41364+349#16599#16250
30K → 20M18941+148#16250#16102
20M → 21M21420+194#16102#15908
21M → 35K11917+102#15908#15806
35K → 23M18232+150#15806#15656
23M → 24M12618+108#15656#15548
24M → 40K13913+126#15548#15422
40K → 25.2M5011+39#15422#15383
25.2M → Finish7941+38#15383#15345
TOTALS3567456+3111
📊

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