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BOSTON MARATHON 2025

Adriana Contreras

Bib: 20281•F

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 43%
Masters (Masters Women)
#0 / 6759
Top 30%
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:29
Rank: #15523
Start → 5K
24:29 | 7:53/mi
10K· 6.21 mi
49:05
Rank: #15669 (-146)
5K → 10K
24:36 | 7:55/mi
15K· 9.32 mi
1:13:54
Rank: #15755 (-86)
10K → 15K
24:49 | 7:59/mi
20K· 12.43 mi
1:39:13
Rank: #15808 (-53)
15K → 20K
25:19 | 8:09/mi
Half· 13.11 mi
1:44:45
Rank: #15857 (-49)
20K → Half
5:32 | 8:07/mi
25K· 15.53 mi
2:04:45
Rank: #15810 (+47)
Half → 25K
20:00 | 8:15/mi
30K· 18.64 mi
2:31:39
Rank: #15786 (+24)
25K → 30K
26:54 | 8:39/mi
20M
2:43:30
Rank: #15665 (+121)
30K → 20M
11:51 | 8:43/mi
21M
2:52:39
Rank: #15543 (+122)
20M → 21M
9:09 | 9:09/mi
35K· 21.75 mi
2:59:08
Rank: #15580 (-37)
21M → 35K
6:29 | 8:40/mi
23M
3:10:16
Rank: #15539 (+41)
35K → 23M
11:08 | 8:54/mi
24M
3:19:06
Rank: #15563 (-24)
23M → 24M
8:50 | 8:50/mi
40K· 24.85 mi
3:26:49
Rank: #15562 (+1)
24M → 40K
7:43 | 9:02/mi
25.2M
3:30:10
Rank: #15554 (+8)
40K → 25.2M
3:21 | 9:43/mi
Finish· 26.22 mi
3:39:12
Rank: #15670 (-116)
25.2M → Finish
9:02 | 8:52/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:45
Pace7:59 /mi
2nd Half
Distance13.11 mi
Time1:54:27
Pace8:44 /mi
📊Positive Split: 9.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4124:297:5324:29
7:53
-
10K
6.21 mi11:43:1749:057:5424:36
7:55
+0:02
15K
9.32 mi12:08:061:13:547:5624:49
7:59
+0:04
20K
12.43 mi12:33:251:39:137:5925:19
8:09
+0:10
Half
13.11 mi12:38:571:44:457:595:32
8:07
-0:02
25K
15.53 mi12:58:572:04:458:0220:00
8:15
+0:08
30K
18.64 mi13:25:512:31:398:0826:54
8:39
+0:24
20M
20.00 mi13:37:422:43:308:1011:51
8:43
+0:04
21M
21.00 mi13:46:512:52:398:139:09
9:09
+0:26
35K
21.75 mi13:53:202:59:088:146:29
8:40
-0:29
23M
23.00 mi14:04:283:10:168:1611:08
8:54
+0:14
24M
24.00 mi14:13:183:19:068:188:50
8:50
-0:04
40K
24.85 mi14:21:013:26:498:197:43
9:02
+0:12
25.2M
25.20 mi14:24:223:30:108:203:21
9:43
+0:41
Finish
26.22 mi14:33:243:39:128:229:02
8:52
-0:51

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

7:53 /mi

Average Pace

8:22 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:45

57% of race

Time at Steady Pace

1:14:14

34% of race

Time at Slower Pace

20:13

9% of race

Average Pace: 8:22 /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 mi11:18:4124:297:5324:29
7:53
#15523
10K
6.21 mi11:43:1749:057:5424:36
7:55
#15669
15K
9.32 mi12:08:061:13:547:5624:49
7:59
#15755
20K
12.43 mi12:33:251:39:137:5925:19
8:09
#15808
Half
13.11 mi12:38:571:44:457:595:32
8:07
#15857
25K
15.53 mi12:58:572:04:458:0220:00
8:15
#15810
30K
18.64 mi13:25:512:31:398:0826:54
8:39
#15786
20M
20.00 mi13:37:422:43:308:1011:51
8:43
#15665
21M
21.00 mi13:46:512:52:398:139:09
9:09
#15543
35K
21.75 mi13:53:202:59:088:146:29
8:40
#15580
23M
23.00 mi14:04:283:10:168:1611:08
8:54
#15539
24M
24.00 mi14:13:183:19:068:188:50
8:50
#15563
40K
24.85 mi14:21:013:26:498:197:43
9:02
#15562
25.2M
25.20 mi14:24:223:30:108:203:21
9:43
#15554
Finish
26.22 mi14:33:243:39:128:229:02
8:52
#15670
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi155234845484515972(Top 56%)5127(Top 42%)5127(Top 298%)
10K6.21 mi3.10 mi15669-1464936-914936-9115817(Top 56%)5022(Top 41%)5022(Top 292%)
15K9.32 mi3.11 mi15755-864989-534989-5315972(Top 56%)5127(Top 42%)5127(Top 298%)
20K12.43 mi3.11 mi15808-535045-565045-5615986(Top 56%)5205(Top 43%)5205(Top 303%)
Half13.11 mi0.68 mi15857-495067-225067-2216713(Top 59%)5588(Top 46%)5588(Top 325%)
25K15.53 mi2.42 mi15810+475060+75060+715624(Top 55%)5084(Top 42%)5084(Top 296%)
30K18.64 mi3.11 mi15786+245102-425102-4215764(Top 55%)5320(Top 44%)5320(Top 310%)
20M20.00 mi1.36 mi15665+1215077+255077+2515206(Top 54%)5156(Top 42%)5156(Top 300%)
21M21.00 mi1.00 mi15543+1225042+355042+3514375(Top 51%)4829(Top 39%)4829(Top 281%)
35K21.75 mi0.75 mi15580-375079-375079-3716492(Top 58%)6051(Top 49%)6051(Top 352%)
23M23.00 mi1.25 mi15539+415093-145093-1415647(Top 55%)5689(Top 47%)5689(Top 331%)
24M24.00 mi1.00 mi15563-245126-335126-3316508(Top 58%)6206(Top 51%)6206(Top 361%)
40K24.85 mi0.85 mi15562+15162-365162-3616463(Top 58%)6286(Top 51%)6286(Top 366%)
25.2M25.20 mi0.35 mi15554+85169-75169-715722(Top 55%)5933(Top 49%)5933(Top 345%)
Finish26.22 mi1.02 mi15670-1165251-825251-8218372(Top 65%)7270(Top 59%)7270(Top 423%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21stories
+97ft-345ft

Overall

15972

Females

5127

F40-44

5127

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

15817

Females

5022

F40-44

5022

10K→15K

6.2 - 9.3 mi

Top 56%
×3stories
+67ft-78ft

Overall

15972

Females

5127

F40-44

5127

15K→20K

9.3 - 12.4 mi

Top 56%
×5stories
+106ft-86ft

Overall

15986

Females

5205

F40-44

5205

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

16713

Females

5588

F40-44

5588

Half→25K

13.1 - 15.5 mi

Top 55%
×4stories
+66ft-88ft

Overall

15624

Females

5084

F40-44

5084

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

15764

Females

5320

F40-44

5320

30K→20M

18.6 - 20.0 mi

Top 54%
×5stories
+64ft-50ft

Overall

15206

Females

5156

F40-44

5156

20M→21M

20.0 - 21.0 mi

Top 51%
×8stories
+106ft-24ft

Overall

14375

Females

4829

F40-44

4829

21M→35K

21.0 - 21.8 mi

Top 58%
×7stories
+17ft-86ft

Overall

16492

Females

6051

F40-44

6051

35K→23M

21.8 - 23.0 mi

Top 55%
×5stories
+23ft-63ft

Overall

15647

Females

5689

F40-44

5689

23M→24M

23.0 - 24.0 mi

Top 58%
×6stories
+12ft-82ft

Overall

16508

Females

6206

F40-44

6206

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16463

Females

6286

F40-44

6286

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15722

Females

5933

F40-44

5933

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2stories
+22ft-21ft

Overall

18372

Females

7270

F40-44

7270

Passing Analysis

Category:
Athletes Passed
1793
Passed By
1940
Net Change
-147
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15523
5K → 10K257403-146#15523#15669
10K → 15K181267-86#15669#15755
15K → 20K186239-53#15755#15808
20K → Half1968-49#15808#15857
Half → 25K196149+47#15857#15810
25K → 30K238214+24#15810#15786
30K → 20M18160+121#15786#15665
20M → 21M17351+122#15665#15543
21M → 35K4481-37#15543#15580
35K → 23M12483+41#15580#15539
23M → 24M5983-24#15539#15563
24M → 40K7473+1#15563#15562
40K → 25.2M3123+8#15562#15554
25.2M → Finish30146-116#15554#15670
TOTALS17931940-147
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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