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BOSTON MARATHON 2025

Ceara Souza

Bib: 26297•F

MA

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
10:47/mi
33:29
↑ 97↓ 3451.5%
10K· 6.21 mi
10:51/mi
1:07:12
↑ 79↓ 1380.4%
15K· 9.32 mi
10:42/mi
1:40:27
↑ 67↓ 78
20K· 12.43 mi
11:13/mi
2:15:17
↑ 106↓ 860.1%
Half· 13.11 mi
11:02/mi
2:22:49
↑ 19↓ 370.5%
25K· 15.53 mi
12:05/mi
2:52:06
↑ 66↓ 880.2%
30K· 18.64 mi
13:38/mi
3:34:27
↑ 181↓ 1480.2%
20M
12:17/mi
3:51:08
↑ 64↓ 500.2%
21M
11:55/mi
4:03:03
↑ 106↓ 241.6%
35K· 21.75 mi
10:50/mi
4:11:09
↑ 17↓ 861.7%
23M
11:47/mi
4:25:54
↑ 23↓ 630.6%
24M
11:10/mi
4:37:04
↓ 821.3%
40K· 24.85 mi
11:27/mi
4:46:51
↓ 200.3%
25.2M
11:59/mi
4:50:59
↑ 13↓ 160.2%
Finish· 26.22 mi
9:24/mi
5:00:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:22:49
Pace10:54 /mi
2nd Half
Distance13.11 mi
Time2:37:45
Pace12:02 /mi
📊Positive Split: 10.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:0633:2910:4733:29
10:47
-
10K
6.21 mi12:22:491:07:1210:4933:43
10:51
+0:04
15K
9.32 mi12:56:041:40:2710:4733:15
10:42
-0:09
20K
12.43 mi13:30:542:15:1710:5334:50
11:13
+0:31
Half
13.11 mi13:38:262:22:4910:547:32
11:02
-0:11
25K
15.53 mi14:07:432:52:0611:0529:17
12:05
+1:03
30K
18.64 mi14:50:043:34:2711:3042:21
13:38
+1:33
20M
20.00 mi15:06:453:51:0811:3316:41
12:17
-1:21
21M
21.00 mi15:18:404:03:0311:3411:55
11:55
-0:22
35K
21.75 mi15:26:464:11:0911:338:06
10:50
-1:05
23M
23.00 mi15:41:314:25:5411:3414:45
11:47
+0:57
24M
24.00 mi15:52:414:37:0411:3311:10
11:10
-0:37
40K
24.85 mi16:02:284:46:5111:329:47
11:27
+0:17
25.2M
25.20 mi16:06:364:50:5911:334:08
11:59
+0:32
Finish
26.22 mi16:16:115:00:3411:289:35
9:24
-2:35

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

9:24 /mi

Average Pace

11:28 /mi

Slowest Pace

13:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

42:50

14% of race

Time at Steady Pace

2:18:37

46% of race

Time at Slower Pace

1:59:07

40% of race

Average Pace: 11:28 /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 mi11:49:0633:2910:4733:29
10:47
#27243
10K
6.21 mi12:22:491:07:1210:4933:43
10:51
#27051
15K
9.32 mi12:56:041:40:2710:4733:15
10:42
#26746
20K
12.43 mi13:30:542:15:1710:5334:50
11:13
#26616
Half
13.11 mi13:38:262:22:4910:547:32
11:02
#26611
25K
15.53 mi14:07:432:52:0611:0529:17
12:05
#26607
30K
18.64 mi14:50:043:34:2711:3042:21
13:38
#26778
20M
20.00 mi15:06:453:51:0811:3316:41
12:17
#26723
21M
21.00 mi15:18:404:03:0311:3411:55
11:55
#26575
35K
21.75 mi15:26:464:11:0911:338:06
10:50
#26491
23M
23.00 mi15:41:314:25:5411:3414:45
11:47
#26421
24M
24.00 mi15:52:414:37:0411:3311:10
11:10
#26345
40K
24.85 mi16:02:284:46:5111:329:47
11:27
#26275
25.2M
25.20 mi16:06:364:50:5911:334:08
11:59
#26244
Finish
26.22 mi16:16:115:00:3411:289:35
9:24
#26156
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi27243114711147126253(Top 92%)10921(Top 89%)10921(Top 200%)
10K6.21 mi3.10 mi27051+19211376+9511376+9526857(Top 95%)11280(Top 92%)11280(Top 206%)
15K9.32 mi3.11 mi26746+30511199+17711199+17726253(Top 92%)10921(Top 89%)10921(Top 200%)
20K12.43 mi3.11 mi26616+13011133+6611133+6626299(Top 93%)10972(Top 90%)10972(Top 201%)
Half13.11 mi0.68 mi26611+511131+211131+226541(Top 93%)11144(Top 91%)11144(Top 204%)
25K15.53 mi2.42 mi26607+411145-1411145-1426512(Top 93%)11143(Top 91%)11143(Top 204%)
30K18.64 mi3.11 mi26778-17111272-12711272-12727224(Top 96%)11617(Top 95%)11617(Top 212%)
20M20.00 mi1.36 mi26723+5511244+2811244+2825633(Top 90%)10818(Top 88%)10818(Top 198%)
21M21.00 mi1.00 mi26575+14811169+7511169+7523429(Top 82%)9736(Top 80%)9736(Top 178%)
35K21.75 mi0.75 mi26491+8411129+4011129+4023843(Top 84%)9973(Top 82%)9973(Top 182%)
23M23.00 mi1.25 mi26421+7011099+3011099+3024717(Top 87%)10458(Top 86%)10458(Top 191%)
24M24.00 mi1.00 mi26345+7611071+2811071+2824308(Top 86%)10281(Top 84%)10281(Top 188%)
40K24.85 mi0.85 mi26275+7011043+2811043+2824016(Top 85%)10180(Top 83%)10180(Top 186%)
25.2M25.20 mi0.35 mi26244+3111027+1611027+1623152(Top 82%)9750(Top 80%)9750(Top 178%)
Finish26.22 mi1.02 mi26156+8810978+4910978+4920798(Top 73%)8567(Top 70%)8567(Top 157%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21story building
+97ft-345ft

Overall

26253

Females

10921

F18-39

10921

5K→10K

3.1 - 6.2 mi

Top 95%
×5story building
+79ft-138ft

Overall

26857

Females

11280

F18-39

11280

10K→15K

6.2 - 9.3 mi

Top 92%
×3story building
+67ft-78ft

Overall

26253

Females

10921

F18-39

10921

15K→20K

9.3 - 12.4 mi

Top 93%
×5story building
+106ft-86ft

Overall

26299

Females

10972

F18-39

10972

20K→Half

12.4 - 13.1 mi

Top 93%
×2story building
+19ft-37ft

Overall

26541

Females

11144

F18-39

11144

Half→25K

13.1 - 15.5 mi

Top 93%
×4story building
+66ft-88ft

Overall

26512

Females

11143

F18-39

11143

25K→30K

15.5 - 18.6 mi

Top 96%
×9story building
+181ft-148ft

Overall

27224

Females

11617

F18-39

11617

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

25633

Females

10818

F18-39

10818

20M→21M

20.0 - 21.0 mi

Top 82%
×8story building
+106ft-24ft

Overall

23429

Females

9736

F18-39

9736

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

23843

Females

9973

F18-39

9973

35K→23M

21.8 - 23.0 mi

Top 87%
×5story building
+23ft-63ft

Overall

24717

Females

10458

F18-39

10458

23M→24M

23.0 - 24.0 mi

Top 86%
×6story building
+12ft-82ft

Overall

24308

Females

10281

F18-39

10281

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

24016

Females

10180

F18-39

10180

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

23152

Females

9750

F18-39

9750

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2story building
+22ft-21ft

Overall

20798

Females

8567

F18-39

8567

Passing Analysis

Category:
Athletes Passed
1565
Passed By
478
Net Change
+1087
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27243
5K → 10K26573+192#27243#27051
10K → 15K3127+305#27051#26746
15K → 20K18454+130#26746#26616
20K → Half2015+5#26616#26611
Half → 25K8379+4#26611#26607
25K → 30K43214-171#26607#26778
30K → 20M6712+55#26778#26723
20M → 21M1502+148#26723#26575
21M → 35K851+84#26575#26491
35K → 23M799+70#26491#26421
23M → 24M782+76#26421#26345
24M → 40K744+70#26345#26275
40K → 25.2M332+31#26275#26244
25.2M → Finish924+88#26244#26156
TOTALS1565478+1087
📊

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