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BOSTON MARATHON 2025

Camila Costa

Bib: 18470•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 37%
Masters (Masters Women)
#0 / 6759
Top 23%
Division (F40-44)
#0 / 1718
Top 45%
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
8:06/mi
25:10
↑ 97↓ 3451.5%
10K· 6.21 mi
7:52/mi
49:36
↑ 79↓ 1380.4%
15K· 9.32 mi
7:55/mi
1:14:11
↑ 67↓ 78
20K· 12.43 mi
8:28/mi
1:40:28
↑ 106↓ 860.1%
Half· 13.11 mi
7:42/mi
1:45:43
↑ 19↓ 370.5%
25K· 15.53 mi
7:59/mi
2:05:05
↑ 66↓ 880.2%
30K· 18.64 mi
8:23/mi
2:31:09
↑ 181↓ 1480.2%
20M
8:26/mi
2:42:36
↑ 64↓ 500.2%
21M
8:47/mi
2:51:23
↑ 106↓ 241.6%
35K· 21.75 mi
8:11/mi
2:57:30
↑ 17↓ 861.7%
23M
8:12/mi
3:07:46
↑ 23↓ 630.6%
24M
8:14/mi
3:16:00
↓ 821.3%
40K· 24.85 mi
8:10/mi
3:22:59
↓ 200.3%
25.2M
9:05/mi
3:26:07
↑ 13↓ 160.2%
Finish· 26.22 mi
8:08/mi
3:34:24
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:43
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time1:48:41
Pace8:17 /mi
📊Positive Split: 2.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:5825:108:0625:10
8:06
-
10K
6.21 mi11:40:2449:367:5924:26
7:52
-0:14
15K
9.32 mi12:04:591:14:117:5824:35
7:55
+0:03
20K
12.43 mi12:31:161:40:288:0526:17
8:28
+0:33
Half
13.11 mi12:36:311:45:438:045:15
7:42
-0:46
25K
15.53 mi12:55:532:05:058:0319:22
7:59
+0:17
30K
18.64 mi13:21:572:31:098:0726:04
8:23
+0:24
20M
20.00 mi13:33:242:42:368:0811:27
8:26
+0:03
21M
21.00 mi13:42:112:51:238:108:47
8:47
+0:21
35K
21.75 mi13:48:182:57:308:106:07
8:11
-0:36
23M
23.00 mi13:58:343:07:468:1010:16
8:12
+0:01
24M
24.00 mi14:06:483:16:008:108:14
8:14
+0:02
40K
24.85 mi14:13:473:22:598:106:59
8:10
-0:04
25.2M
25.20 mi14:16:553:26:078:113:08
9:05
+0:55
Finish
26.22 mi14:25:123:34:248:118:17
8:08
-0:57

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

7:42 /mi

Average Pace

8:11 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:22:29

94% of race

Time at Steady Pace

11:55

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:11 /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 mi11:15:5825:108:0625:10
8:06
#17351
10K
6.21 mi11:40:2449:367:5924:26
7:52
#16364
15K
9.32 mi12:04:591:14:117:5824:35
7:55
#16001
20K
12.43 mi12:31:161:40:288:0526:17
8:28
#16560
Half
13.11 mi12:36:311:45:438:045:15
7:42
#16415
25K
15.53 mi12:55:532:05:058:0319:22
7:59
#15960
30K
18.64 mi13:21:572:31:098:0726:04
8:23
#15570
20M
20.00 mi13:33:242:42:368:0811:27
8:26
#15357
21M
21.00 mi13:42:112:51:238:108:47
8:47
#15110
35K
21.75 mi13:48:182:57:308:106:07
8:11
#15032
23M
23.00 mi13:58:343:07:468:1010:16
8:12
#14765
24M
24.00 mi14:06:483:16:008:108:14
8:14
#14661
40K
24.85 mi14:13:473:22:598:106:59
8:10
#14499
25.2M
25.20 mi14:16:553:26:078:113:08
9:05
#14453
Finish
26.22 mi14:25:123:34:248:118:17
8:08
#14392
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi173515940594015348(Top 54%)4778(Top 39%)4778(Top 278%)
10K6.21 mi3.10 mi16364+9875358+5825358+58215405(Top 54%)4785(Top 39%)4785(Top 279%)
15K9.32 mi3.11 mi16001+3635147+2115147+21115348(Top 54%)4778(Top 39%)4778(Top 278%)
20K12.43 mi3.11 mi16560-5595475-3285475-32817953(Top 63%)6313(Top 52%)6313(Top 367%)
Half13.11 mi0.68 mi16415+1455383+925383+9213444(Top 47%)3755(Top 31%)3755(Top 219%)
25K15.53 mi2.42 mi15960+4555141+2425141+24213818(Top 49%)4118(Top 34%)4118(Top 240%)
30K18.64 mi3.11 mi15570+3904979+1624979+16214091(Top 50%)4427(Top 36%)4427(Top 258%)
20M20.00 mi1.36 mi15357+2134898+814898+8113337(Top 47%)4161(Top 34%)4161(Top 242%)
21M21.00 mi1.00 mi15110+2474787+1114787+11112239(Top 43%)3736(Top 31%)3736(Top 217%)
35K21.75 mi0.75 mi15032+784757+304757+3013502(Top 48%)4433(Top 36%)4433(Top 258%)
23M23.00 mi1.25 mi14765+2674638+1194638+11911393(Top 40%)3439(Top 28%)3439(Top 200%)
24M24.00 mi1.00 mi14661+1044609+294609+2912837(Top 45%)4237(Top 35%)4237(Top 247%)
40K24.85 mi0.85 mi14499+1624544+654544+6511407(Top 40%)3616(Top 30%)3616(Top 210%)
25.2M25.20 mi0.35 mi14453+464535+94535+912363(Top 44%)4162(Top 34%)4162(Top 242%)
Finish26.22 mi1.02 mi14392+614533+24533+213815(Top 49%)4861(Top 40%)4861(Top 283%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

15348

Females

4778

F40-44

4778

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

15405

Females

4785

F40-44

4785

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

15348

Females

4778

F40-44

4778

15K→20K

9.3 - 12.4 mi

Top 63%
×5story building
+106ft-86ft

Overall

17953

Females

6313

F40-44

6313

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

13444

Females

3755

F40-44

3755

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13818

Females

4118

F40-44

4118

25K→30K

15.5 - 18.6 mi

Top 50%
×9story building
+181ft-148ft

Overall

14091

Females

4427

F40-44

4427

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

13337

Females

4161

F40-44

4161

20M→21M

20.0 - 21.0 mi

Top 43%
×8story building
+106ft-24ft

Overall

12239

Females

3736

F40-44

3736

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

13502

Females

4433

F40-44

4433

35K→23M

21.8 - 23.0 mi

Top 40%
×5story building
+23ft-63ft

Overall

11393

Females

3439

F40-44

3439

23M→24M

23.0 - 24.0 mi

Top 45%
×6story building
+12ft-82ft

Overall

12837

Females

4237

F40-44

4237

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11407

Females

3616

F40-44

3616

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

12363

Females

4162

F40-44

4162

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2story building
+22ft-21ft

Overall

13815

Females

4861

F40-44

4861

Passing Analysis

Category:
Athletes Passed
3917
Passed By
958
Net Change
+2959
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17351
5K → 10K103649+987#17351#16364
10K → 15K43572+363#16364#16001
15K → 20K74633-559#16001#16560
20K → Half1461+145#16560#16415
Half → 25K4616+455#16415#15960
25K → 30K44454+390#15960#15570
30K → 20M23219+213#15570#15357
20M → 21M25811+247#15357#15110
21M → 35K9416+78#15110#15032
35K → 23M28215+267#15032#14765
23M → 24M12319+104#14765#14661
24M → 40K1719+162#14661#14499
40K → 25.2M5812+46#14499#14453
25.2M → Finish10342+61#14453#14392
TOTALS3917958+2959
📊

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