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BOSTON MARATHON 2025

Marcela Arias Stevens

Bib: 23249•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 47%
Masters (Masters Women)
#0 / 6759
Top 35%
Division (F50-54)
#0 / 1303
Top 29%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:26
Rank: #19929
Start → 5K
26:26 | 8:30/mi
10K· 6.21 mi
53:02
Rank: #20047 (-118)
5K → 10K
26:36 | 8:34/mi
15K· 9.32 mi
1:19:22
Rank: #19767 (+280)
10K → 15K
26:20 | 8:29/mi
20K· 12.43 mi
1:46:51
Rank: #19854 (-87)
15K → 20K
27:29 | 8:51/mi
Half· 13.11 mi
1:52:33
Rank: #19793 (+61)
20K → Half
5:42 | 8:21/mi
25K· 15.53 mi
2:13:20
Rank: #19410 (+383)
Half → 25K
20:47 | 8:34/mi
30K· 18.64 mi
2:40:36
Rank: #18843 (+567)
25K → 30K
27:16 | 8:47/mi
20M
2:52:22
Rank: #18541 (+302)
30K → 20M
11:46 | 8:40/mi
21M
3:01:31
Rank: #18272 (+269)
20M → 21M
9:09 | 9:09/mi
35K· 21.75 mi
3:07:37
Rank: #18092 (+180)
21M → 35K
6:06 | 8:09/mi
23M
3:17:36
Rank: #17612 (+480)
35K → 23M
9:59 | 7:58/mi
24M
3:25:32
Rank: #17313 (+299)
23M → 24M
7:56 | 7:56/mi
40K· 24.85 mi
3:32:16
Rank: #17026 (+287)
24M → 40K
6:44 | 7:53/mi
25.2M
3:35:17
Rank: #16898 (+128)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
3:42:57
Rank: #16619 (+279)
25.2M → Finish
7:40 | 7:31/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:52:33
Pace8:35 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:50:24
Pace8:25 /mi
📊Negative Split: 1.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:2326:268:3026:26
8:30
-
10K
6.21 mi11:49:5953:028:3226:36
8:34
+0:04
15K
9.32 mi12:16:191:19:228:3126:20
8:29
-0:05
20K
12.43 mi12:43:481:46:518:3627:29
8:51
+0:22
Half
13.11 mi12:49:301:52:338:355:42
8:21
-0:30
25K
15.53 mi13:10:172:13:208:3520:47
8:34
+0:13
30K
18.64 mi13:37:332:40:368:3727:16
8:47
+0:13
20M
20.00 mi13:49:192:52:228:3711:46
8:40
-0:07
21M
21.00 mi13:58:283:01:318:399:09
9:09
+0:29
35K
21.75 mi14:04:343:07:378:386:06
8:09
-1:00
23M
23.00 mi14:14:333:17:368:359:59
7:58
-0:11
24M
24.00 mi14:22:293:25:328:347:56
7:56
-0:02
40K
24.85 mi14:29:133:32:168:326:44
7:53
-0:03
25.2M
25.20 mi14:32:143:35:178:333:01
8:45
+0:52
Finish
26.22 mi14:39:543:42:578:317:40
7:31
-1:14

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

7:31 /mi

Average Pace

8:31 /mi

Slowest Pace

9:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

38:25

17% of race

Time at Steady Pace

1:57:37

53% of race

Time at Slower Pace

1:06:55

30% of race

Average Pace: 8:30 /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 mi11:23:2326:268:3026:26
8:30
#19929
10K
6.21 mi11:49:5953:028:3226:36
8:34
#20047
15K
9.32 mi12:16:191:19:228:3126:20
8:29
#19767
20K
12.43 mi12:43:481:46:518:3627:29
8:51
#19854
Half
13.11 mi12:49:301:52:338:355:42
8:21
#19793
25K
15.53 mi13:10:172:13:208:3520:47
8:34
#19410
30K
18.64 mi13:37:332:40:368:3727:16
8:47
#18843
20M
20.00 mi13:49:192:52:228:3711:46
8:40
#18541
21M
21.00 mi13:58:283:01:318:399:09
9:09
#18272
35K
21.75 mi14:04:343:07:378:386:06
8:09
#18092
23M
23.00 mi14:14:333:17:368:359:59
7:58
#17612
24M
24.00 mi14:22:293:25:328:347:56
7:56
#17313
40K
24.85 mi14:29:133:32:168:326:44
7:53
#17026
25.2M
25.20 mi14:32:143:35:178:333:01
8:45
#16898
Finish
26.22 mi14:39:543:42:578:317:40
7:31
#16619
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi199297456745619187(Top 68%)6994(Top 57%)6994(Top 537%)
10K6.21 mi3.10 mi20047-1187495-397495-3920155(Top 71%)7547(Top 62%)7547(Top 579%)
15K9.32 mi3.11 mi19767+2807329+1667329+16619187(Top 68%)6994(Top 57%)6994(Top 537%)
20K12.43 mi3.11 mi19854-877392-637392-6320189(Top 71%)7580(Top 62%)7580(Top 582%)
Half13.11 mi0.68 mi19793+617357+357357+3518309(Top 64%)6486(Top 53%)6486(Top 498%)
25K15.53 mi2.42 mi19410+3837150+2077150+20717632(Top 62%)6207(Top 51%)6207(Top 476%)
30K18.64 mi3.11 mi18843+5676854+2966854+29616468(Top 58%)5723(Top 47%)5723(Top 439%)
20M20.00 mi1.36 mi18541+3026709+1456709+14514842(Top 52%)4970(Top 41%)4970(Top 381%)
21M21.00 mi1.00 mi18272+2696594+1156594+11514380(Top 51%)4834(Top 40%)4834(Top 371%)
35K21.75 mi0.75 mi18092+1806507+876507+8713381(Top 47%)4380(Top 36%)4380(Top 336%)
23M23.00 mi1.25 mi17612+4806284+2236284+2239892(Top 35%)2696(Top 22%)2696(Top 207%)
24M24.00 mi1.00 mi17313+2996145+1396145+13910832(Top 38%)3231(Top 26%)3231(Top 248%)
40K24.85 mi0.85 mi17026+2876001+1446001+1449357(Top 33%)2631(Top 22%)2631(Top 202%)
25.2M25.20 mi0.35 mi16898+1285942+595942+5910429(Top 37%)3265(Top 27%)3265(Top 251%)
Finish26.22 mi1.02 mi16619+2795796+1465796+1469414(Top 33%)2742(Top 22%)2742(Top 210%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21stories
+97ft-345ft

Overall

19187

Females

6994

F50-54

6994

5K→10K

3.1 - 6.2 mi

Top 71%
×5stories
+79ft-138ft

Overall

20155

Females

7547

F50-54

7547

10K→15K

6.2 - 9.3 mi

Top 68%
×3stories
+67ft-78ft

Overall

19187

Females

6994

F50-54

6994

15K→20K

9.3 - 12.4 mi

Top 71%
×5stories
+106ft-86ft

Overall

20189

Females

7580

F50-54

7580

20K→Half

12.4 - 13.1 mi

Top 64%
×2stories
+19ft-37ft

Overall

18309

Females

6486

F50-54

6486

Half→25K

13.1 - 15.5 mi

Top 62%
×4stories
+66ft-88ft

Overall

17632

Females

6207

F50-54

6207

25K→30K

15.5 - 18.6 mi

Top 58%
×9stories
+181ft-148ft

Overall

16468

Females

5723

F50-54

5723

30K→20M

18.6 - 20.0 mi

Top 52%
×5stories
+64ft-50ft

Overall

14842

Females

4970

F50-54

4970

20M→21M

20.0 - 21.0 mi

Top 51%
×8stories
+106ft-24ft

Overall

14380

Females

4834

F50-54

4834

21M→35K

21.0 - 21.8 mi

Top 47%
×7stories
+17ft-86ft

Overall

13381

Females

4380

F50-54

4380

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

9892

Females

2696

F50-54

2696

23M→24M

23.0 - 24.0 mi

Top 38%
×6stories
+12ft-82ft

Overall

10832

Females

3231

F50-54

3231

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9357

Females

2631

F50-54

2631

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

10429

Females

3265

F50-54

3265

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2stories
+22ft-21ft

Overall

9414

Females

2742

F50-54

2742

Passing Analysis

Category:
Athletes Passed
4043
Passed By
733
Net Change
+3310
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19929
5K → 10K228346-118#19929#20047
10K → 15K35171+280#20047#19767
15K → 20K175262-87#19767#19854
20K → Half687+61#19854#19793
Half → 25K39512+383#19793#19410
25K → 30K58821+567#19410#18843
30K → 20M3042+302#18843#18541
20M → 21M2778+269#18541#18272
21M → 35K1800+180#18272#18092
35K → 23M4800+480#18092#17612
23M → 24M3001+299#17612#17313
24M → 40K2881+287#17313#17026
40K → 25.2M1280+128#17026#16898
25.2M → Finish2812+279#16898#16619
TOTALS4043733+3310
📊

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