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BOSTON MARATHON 2025

Camillia Brieno

Bib: 19273•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
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
7:43/mi
23:58
↑ 97↓ 3451.5%
10K· 6.21 mi
7:56/mi
48:36
↑ 79↓ 1380.4%
15K· 9.32 mi
8:14/mi
1:14:12
↑ 67↓ 78
20K· 12.43 mi
8:42/mi
1:41:14
↑ 106↓ 860.1%
Half· 13.11 mi
8:30/mi
1:47:02
↑ 19↓ 370.5%
25K· 15.53 mi
8:56/mi
2:08:42
↑ 66↓ 880.2%
30K· 18.64 mi
9:13/mi
2:37:20
↑ 181↓ 1480.2%
20M
9:13/mi
2:49:51
↑ 64↓ 500.2%
21M
9:45/mi
2:59:36
↑ 106↓ 241.6%
35K· 21.75 mi
8:31/mi
3:05:58
↑ 17↓ 861.7%
23M
9:17/mi
3:17:36
↑ 23↓ 630.6%
24M
8:44/mi
3:26:20
↓ 821.3%
40K· 24.85 mi
9:03/mi
3:34:04
↓ 200.3%
25.2M
10:06/mi
3:37:33
↑ 13↓ 160.2%
Finish· 26.22 mi
8:44/mi
3:46:27
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:02
Pace8:10 /mi
2nd Half
Distance13.11 mi
Time1:59:25
Pace9:07 /mi
📊Positive Split: 11.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:4123:587:4323:58
7:43
-
10K
6.21 mi11:40:1948:367:4924:38
7:56
+0:13
15K
9.32 mi12:05:551:14:127:5825:36
8:14
+0:18
20K
12.43 mi12:32:571:41:148:0927:02
8:42
+0:28
Half
13.11 mi12:38:451:47:028:105:48
8:30
-0:12
25K
15.53 mi13:00:252:08:428:1721:40
8:56
+0:26
30K
18.64 mi13:29:032:37:208:2628:38
9:13
+0:17
20M
20.00 mi13:41:342:49:518:3012:31
9:13
0:00
21M
21.00 mi13:51:192:59:368:339:45
9:45
+0:32
35K
21.75 mi13:57:413:05:588:336:22
8:31
-1:14
23M
23.00 mi14:09:193:17:368:3511:38
9:17
+0:46
24M
24.00 mi14:18:033:26:208:368:44
8:44
-0:33
40K
24.85 mi14:25:473:34:048:377:44
9:03
+0:19
25.2M
25.20 mi14:29:163:37:338:383:29
10:06
+1:03
Finish
26.22 mi14:38:103:46:278:398:54
8:44
-1:22

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

7:43 /mi

Average Pace

8:39 /mi

Slowest Pace

10:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:12

33% of race

Time at Steady Pace

1:18:30

35% of race

Time at Slower Pace

1:13:45

33% of race

Average Pace: 8:38 /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 mi11:15:4123:587:4323:58
7:43
#14113
10K
6.21 mi11:40:1948:367:4924:38
7:56
#14969
15K
9.32 mi12:05:551:14:127:5825:36
8:14
#16020
20K
12.43 mi12:32:571:41:148:0927:02
8:42
#17010
Half
13.11 mi12:38:451:47:028:105:48
8:30
#17095
25K
15.53 mi13:00:252:08:428:1721:40
8:56
#17509
30K
18.64 mi13:29:032:37:208:2628:38
9:13
#17733
20M
20.00 mi13:41:342:49:518:3012:31
9:13
#17731
21M
21.00 mi13:51:192:59:368:339:45
9:45
#17709
35K
21.75 mi13:57:413:05:588:336:22
8:31
#17614
23M
23.00 mi14:09:193:17:368:3511:38
9:17
#17614
24M
24.00 mi14:18:033:26:208:368:44
8:44
#17518
40K
24.85 mi14:25:473:34:048:377:44
9:03
#17487
25.2M
25.20 mi14:29:163:37:338:383:29
10:06
#17480
Finish
26.22 mi14:38:103:46:278:398:54
8:44
#17477
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi141133984398417669(Top 62%)6123(Top 50%)6123(Top 112%)
10K6.21 mi3.10 mi14969-8564533-5494533-54915916(Top 56%)5079(Top 42%)5079(Top 93%)
15K9.32 mi3.11 mi16020-10515157-6245157-62417669(Top 62%)6123(Top 50%)6123(Top 112%)
20K12.43 mi3.11 mi17010-9905745-5885745-58819420(Top 68%)7150(Top 58%)7150(Top 131%)
Half13.11 mi0.68 mi17095-855807-625807-6219225(Top 68%)7016(Top 57%)7016(Top 128%)
25K15.53 mi2.42 mi17509-4146065-2586065-25819622(Top 69%)7322(Top 60%)7322(Top 134%)
30K18.64 mi3.11 mi17733-2246248-1836248-18318716(Top 66%)6959(Top 57%)6959(Top 127%)
20M20.00 mi1.36 mi17731+26279-316279-3117838(Top 63%)6612(Top 54%)6612(Top 121%)
21M21.00 mi1.00 mi17709+226274+56274+517274(Top 61%)6414(Top 52%)6414(Top 117%)
35K21.75 mi0.75 mi17614+956247+276247+2715578(Top 55%)5568(Top 46%)5568(Top 102%)
23M23.00 mi1.25 mi176146286-396286-3917745(Top 62%)6862(Top 56%)6862(Top 125%)
24M24.00 mi1.00 mi17518+966259+276259+2715960(Top 56%)5914(Top 48%)5914(Top 108%)
40K24.85 mi0.85 mi17487+316272-136272-1316597(Top 58%)6367(Top 52%)6367(Top 116%)
25.2M25.20 mi0.35 mi17480+76278-66278-617507(Top 62%)6861(Top 56%)6861(Top 125%)
Finish26.22 mi1.02 mi17477+36299-216299-2117694(Top 62%)6919(Top 57%)6919(Top 127%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

17669

Females

6123

F18-39

6123

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

15916

Females

5079

F18-39

5079

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

17669

Females

6123

F18-39

6123

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

19420

Females

7150

F18-39

7150

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

19225

Females

7016

F18-39

7016

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

19622

Females

7322

F18-39

7322

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

18716

Females

6959

F18-39

6959

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

17838

Females

6612

F18-39

6612

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

17274

Females

6414

F18-39

6414

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

15578

Females

5568

F18-39

5568

35K→23M

21.8 - 23.0 mi

Top 62%
×5story building
+23ft-63ft

Overall

17745

Females

6862

F18-39

6862

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

15960

Females

5914

F18-39

5914

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16597

Females

6367

F18-39

6367

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

17507

Females

6861

F18-39

6861

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2story building
+22ft-21ft

Overall

17694

Females

6919

F18-39

6919

Passing Analysis

Category:
Athletes Passed
1150
Passed By
4514
Net Change
-3364
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14113
5K → 10K82938-856#14113#14969
10K → 15K381089-1051#14969#16020
15K → 20K301020-990#16020#17010
20K → Half1297-85#17010#17095
Half → 25K77491-414#17095#17509
25K → 30K150374-224#17509#17733
30K → 20M125123+2#17733#17731
20M → 21M11391+22#17731#17709
21M → 35K11520+95#17709#17614
35K → 23M1091090#17614#17614
23M → 24M12327+96#17614#17518
24M → 40K8453+31#17518#17487
40K → 25.2M2922+7#17487#17480
25.2M → Finish6360+3#17480#17477
TOTALS11504514-3364
📊

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