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BOSTON MARATHON 2025

Fernanda De Sousa

Bib: 19469•F

0:00
0:00
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 45%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:14
Rank: #17524
Start → 5K
8:07/mi
25:14 split
10K· 6.21 mi
49:57
Rank: #16827 (+697)
5K → 10K
7:57/mi
24:43 split
15K· 9.32 mi
1:14:53
Rank: #16594 (+233)
10K → 15K
8:02/mi
24:56 split
20K· 12.43 mi
1:40:17
Rank: #16451 (+143)
15K → 20K
8:11/mi
25:24 split
Half· 13.11 mi
1:45:48
Rank: #16461 (-10)
20K → Half
8:05/mi
5:31 split
25K· 15.53 mi
2:05:38
Rank: #16229 (+232)
Half → 25K
8:11/mi
19:50 split
30K· 18.64 mi
2:32:57
Rank: #16243 (-14)
25K → 30K
8:48/mi
27:19 split
20M
2:44:46
Rank: #16130 (+113)
30K → 20M
8:42/mi
11:49 split
21M
2:54:28
Rank: #16131 (-1)
20M → 21M
9:42/mi
9:42 split
35K· 21.75 mi
3:00:58
Rank: #16116 (+15)
21M → 35K
8:41/mi
6:30 split
23M
3:12:15
Rank: #16074 (+42)
35K → 23M
9:01/mi
11:17 split
24M
3:20:54
Rank: #16034 (+40)
23M → 24M
8:39/mi
8:39 split
40K· 24.85 mi
3:28:47
Rank: #16085 (-51)
24M → 40K
9:13/mi
7:53 split
25.2M
3:32:11
Rank: #16072 (+13)
40K → 25.2M
9:52/mi
3:24 split
Finish· 26.22 mi
3:41:00
Rank: #16119 (-47)
25.2M → Finish
8:39/mi
8:49 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:48
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time1:55:12
Pace8:47 /mi
📊Positive Split: 8.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:3825:148:0725:14
8:07
-
10K
6.21 mi11:41:2149:578:0224:43
7:57
-0:10
15K
9.32 mi12:06:171:14:538:0224:56
8:02
+0:05
20K
12.43 mi12:31:411:40:178:0425:24
8:11
+0:09
Half
13.11 mi12:37:121:45:488:045:31
8:05
-0:06
25K
15.53 mi12:57:022:05:388:0519:50
8:11
+0:06
30K
18.64 mi13:24:212:32:578:1227:19
8:48
+0:37
20M
20.00 mi13:36:102:44:468:1411:49
8:42
-0:06
21M
21.00 mi13:45:522:54:288:189:42
9:42
+1:00
35K
21.75 mi13:52:223:00:588:196:30
8:41
-1:01
23M
23.00 mi14:03:393:12:158:2211:17
9:01
+0:20
24M
24.00 mi14:12:183:20:548:228:39
8:39
-0:22
40K
24.85 mi14:20:113:28:478:247:53
9:13
+0:34
25.2M
25.20 mi14:23:353:32:118:253:24
9:52
+0:39
Finish
26.22 mi14:32:243:41:008:268:49
8:39
-1:13

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

7:57 /mi

Average Pace

8:26 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:38

57% of race

Time at Steady Pace

1:03:06

29% of race

Time at Slower Pace

32:16

15% of race

Average Pace: 8:26 /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 mi11:16:3825:148:0725:14
8:07
#17524
10K
6.21 mi11:41:2149:578:0224:43
7:57
#16827
15K
9.32 mi12:06:171:14:538:0224:56
8:02
#16594
20K
12.43 mi12:31:411:40:178:0425:24
8:11
#16451
Half
13.11 mi12:37:121:45:488:045:31
8:05
#16461
25K
15.53 mi12:57:022:05:388:0519:50
8:11
#16229
30K
18.64 mi13:24:212:32:578:1227:19
8:48
#16243
20M
20.00 mi13:36:102:44:468:1411:49
8:42
#16130
21M
21.00 mi13:45:522:54:288:189:42
9:42
#16131
35K
21.75 mi13:52:223:00:588:196:30
8:41
#16116
23M
23.00 mi14:03:393:12:158:2211:17
9:01
#16074
24M
24.00 mi14:12:183:20:548:228:39
8:39
#16034
40K
24.85 mi14:20:113:28:478:247:53
9:13
#16085
25.2M
25.20 mi14:23:353:32:118:253:24
9:52
#16072
Finish
26.22 mi14:32:243:41:008:268:49
8:39
#16119
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi175246043604316254(Top 57%)5288(Top 43%)5288(Top 97%)
10K6.21 mi3.10 mi16827+6975627+4165627+41616125(Top 57%)5196(Top 42%)5196(Top 95%)
15K9.32 mi3.11 mi16594+2335486+1415486+14116254(Top 57%)5288(Top 43%)5288(Top 97%)
20K12.43 mi3.11 mi16451+1435403+835403+8316155(Top 57%)5307(Top 43%)5307(Top 97%)
Half13.11 mi0.68 mi16461-105413-105413-1016570(Top 58%)5516(Top 45%)5516(Top 101%)
25K15.53 mi2.42 mi16229+2325297+1165297+11615195(Top 53%)4850(Top 40%)4850(Top 89%)
30K18.64 mi3.11 mi16243-145373-765373-7616568(Top 58%)5784(Top 47%)5784(Top 106%)
20M20.00 mi1.36 mi16130+1135342+315342+3115062(Top 53%)5083(Top 42%)5083(Top 93%)
21M21.00 mi1.00 mi16131-15371-295371-2917044(Top 60%)6278(Top 51%)6278(Top 115%)
35K21.75 mi0.75 mi16116+155393-225393-2216629(Top 59%)6125(Top 50%)6125(Top 112%)
23M23.00 mi1.25 mi16074+425398-55398-516338(Top 58%)6075(Top 50%)6075(Top 111%)
24M24.00 mi1.00 mi16034+405399-15399-115476(Top 54%)5638(Top 46%)5638(Top 103%)
40K24.85 mi0.85 mi16085-515455-565455-5617455(Top 61%)6831(Top 56%)6831(Top 125%)
25.2M25.20 mi0.35 mi16072+135454+15454+116424(Top 58%)6285(Top 51%)6285(Top 115%)
Finish26.22 mi1.02 mi16119-475499-455499-4517192(Top 61%)6654(Top 54%)6654(Top 122%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21story building
+97ft-345ft

Overall

16254

Females

5288

F18-39

5288

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

16125

Females

5196

F18-39

5196

10K→15K

6.2 - 9.3 mi

Top 57%
×3story building
+67ft-78ft

Overall

16254

Females

5288

F18-39

5288

15K→20K

9.3 - 12.4 mi

Top 57%
×5story building
+106ft-86ft

Overall

16155

Females

5307

F18-39

5307

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+19ft-37ft

Overall

16570

Females

5516

F18-39

5516

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

15195

Females

4850

F18-39

4850

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

16568

Females

5784

F18-39

5784

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

15062

Females

5083

F18-39

5083

20M→21M

20.0 - 21.0 mi

Top 60%
×8story building
+106ft-24ft

Overall

17044

Females

6278

F18-39

6278

21M→35K

21.0 - 21.8 mi

Top 59%
×7story building
+17ft-86ft

Overall

16629

Females

6125

F18-39

6125

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

16338

Females

6075

F18-39

6075

23M→24M

23.0 - 24.0 mi

Top 54%
×6story building
+12ft-82ft

Overall

15476

Females

5638

F18-39

5638

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

17455

Females

6831

F18-39

6831

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

16424

Females

6285

F18-39

6285

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2story building
+22ft-21ft

Overall

17192

Females

6654

F18-39

6654

Passing Analysis

Category:
Athletes Passed
2627
Passed By
1222
Net Change
+1405
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17524
5K → 10K77477+697#17524#16827
10K → 15K33097+233#16827#16594
15K → 20K282139+143#16594#16451
20K → Half2939-10#16451#16461
Half → 25K28149+232#16461#16229
25K → 30K223237-14#16229#16243
30K → 20M16754+113#16243#16130
20M → 21M103104-1#16130#16131
21M → 35K7762+15#16131#16116
35K → 23M13088+42#16116#16074
23M → 24M8242+40#16074#16034
24M → 40K53104-51#16034#16085
40K → 25.2M4532+13#16085#16072
25.2M → Finish5198-47#16072#16119
TOTALS26271222+1405
📊

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