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BOSTON MARATHON 2025

Barbara Vielma

Bib: 18373•F

OR

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 44%
Gender (Female)
#0 / 12228
Top 29%
Masters (Masters Women)
#0 / 6759
Top 14%
Division (F40-44)
#0 / 1718
Top 29%
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
7:54/mi
24:32
↑ 97↓ 3451.5%
10K· 6.21 mi
7:49/mi
48:48
↑ 79↓ 1380.4%
15K· 9.32 mi
7:47/mi
1:13:00
↑ 67↓ 78
20K· 12.43 mi
7:53/mi
1:37:28
↑ 106↓ 860.1%
Half· 13.11 mi
7:45/mi
1:42:45
↑ 19↓ 370.5%
25K· 15.53 mi
7:54/mi
2:01:54
↑ 66↓ 880.2%
30K· 18.64 mi
8:01/mi
2:26:48
↑ 181↓ 1480.2%
20M
7:56/mi
2:37:35
↑ 64↓ 500.2%
21M
8:27/mi
2:46:02
↑ 106↓ 241.6%
35K· 21.75 mi
7:40/mi
2:51:46
↑ 17↓ 861.7%
23M
7:52/mi
3:01:37
↑ 23↓ 630.6%
24M
7:51/mi
3:09:28
↓ 821.3%
40K· 24.85 mi
8:05/mi
3:16:23
↓ 200.3%
25.2M
8:51/mi
3:19:26
↑ 13↓ 160.2%
Finish· 26.22 mi
8:05/mi
3:27:40
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:45
Pace7:50 /mi
2nd Half
Distance13.11 mi
Time1:44:55
Pace8:00 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:5124:327:5424:32
7:54
-
10K
6.21 mi11:40:0748:487:5124:16
7:49
-0:05
15K
9.32 mi12:04:191:13:007:5024:12
7:47
-0:02
20K
12.43 mi12:28:471:37:287:5124:28
7:53
+0:06
Half
13.11 mi12:34:041:42:457:505:17
7:45
-0:08
25K
15.53 mi12:53:132:01:547:5119:09
7:54
+0:09
30K
18.64 mi13:18:072:26:487:5324:54
8:01
+0:07
20M
20.00 mi13:28:542:37:357:5310:47
7:56
-0:05
21M
21.00 mi13:37:212:46:027:548:27
8:27
+0:31
35K
21.75 mi13:43:052:51:467:545:44
7:40
-0:47
23M
23.00 mi13:52:563:01:377:549:51
7:52
+0:12
24M
24.00 mi14:00:473:09:287:547:51
7:51
-0:01
40K
24.85 mi14:07:423:16:237:546:55
8:05
+0:14
25.2M
25.20 mi14:10:453:19:267:553:03
8:51
+0:46
Finish
26.22 mi14:18:593:27:407:568:14
8:05
-0:46

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

7:40 /mi

Average Pace

7:56 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:16:10

94% of race

Time at Steady Pace

11:30

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:55 /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 mi11:15:5124:327:5424:32
7:54
#15656
10K
6.21 mi11:40:0748:487:5124:16
7:49
#15277
15K
9.32 mi12:04:191:13:007:5024:12
7:47
#14909
20K
12.43 mi12:28:471:37:287:5124:28
7:53
#14623
Half
13.11 mi12:34:041:42:457:505:17
7:45
#14559
25K
15.53 mi12:53:132:01:547:5119:09
7:54
#14284
30K
18.64 mi13:18:072:26:487:5324:54
8:01
#13676
20M
20.00 mi13:28:542:37:357:5310:47
7:56
#13365
21M
21.00 mi13:37:212:46:027:548:27
8:27
#13141
35K
21.75 mi13:43:052:51:467:545:44
7:40
#13016
23M
23.00 mi13:52:563:01:377:549:51
7:52
#12736
24M
24.00 mi14:00:473:09:287:547:51
7:51
#12593
40K
24.85 mi14:07:423:16:237:546:55
8:05
#12487
25.2M
25.20 mi14:10:453:19:267:553:03
8:51
#12455
Finish
26.22 mi14:18:593:27:407:568:14
8:05
#12490
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi156564923492314286(Top 50%)4189(Top 34%)4189(Top 244%)
10K6.21 mi3.10 mi15277+3794707+2164707+21614926(Top 53%)4485(Top 37%)4485(Top 261%)
15K9.32 mi3.11 mi14909+3684502+2054502+20514286(Top 50%)4189(Top 34%)4189(Top 244%)
20K12.43 mi3.11 mi14623+2864355+1474355+14713887(Top 49%)4024(Top 33%)4024(Top 234%)
Half13.11 mi0.68 mi14559+644321+344321+3413812(Top 49%)3951(Top 32%)3951(Top 230%)
25K15.53 mi2.42 mi14284+2754206+1154206+11513087(Top 46%)3716(Top 30%)3716(Top 216%)
30K18.64 mi3.11 mi13676+6083922+2843922+28411508(Top 41%)3044(Top 25%)3044(Top 177%)
20M20.00 mi1.36 mi13365+3113782+1403782+14010047(Top 35%)2463(Top 20%)2463(Top 143%)
21M21.00 mi1.00 mi13141+2243683+993683+9910193(Top 36%)2708(Top 22%)2708(Top 158%)
35K21.75 mi0.75 mi13016+1253630+533630+539862(Top 35%)2554(Top 21%)2554(Top 149%)
23M23.00 mi1.25 mi12736+2803519+1113519+1119096(Top 32%)2313(Top 19%)2313(Top 135%)
24M24.00 mi1.00 mi12593+1433471+483471+4810233(Top 36%)2928(Top 24%)2928(Top 170%)
40K24.85 mi0.85 mi12487+1063451+203451+2010815(Top 38%)3324(Top 27%)3324(Top 193%)
25.2M25.20 mi0.35 mi12455+323449+23449+210992(Top 39%)3486(Top 29%)3486(Top 203%)
Finish26.22 mi1.02 mi12490-353499-503499-5013460(Top 47%)4668(Top 38%)4668(Top 272%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21story building
+97ft-345ft

Overall

14286

Females

4189

F40-44

4189

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

14926

Females

4485

F40-44

4485

10K→15K

6.2 - 9.3 mi

Top 50%
×3story building
+67ft-78ft

Overall

14286

Females

4189

F40-44

4189

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13887

Females

4024

F40-44

4024

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

13812

Females

3951

F40-44

3951

Half→25K

13.1 - 15.5 mi

Top 46%
×4story building
+66ft-88ft

Overall

13087

Females

3716

F40-44

3716

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

11508

Females

3044

F40-44

3044

30K→20M

18.6 - 20.0 mi

Top 35%
×5story building
+64ft-50ft

Overall

10047

Females

2463

F40-44

2463

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

10193

Females

2708

F40-44

2708

21M→35K

21.0 - 21.8 mi

Top 35%
×7story building
+17ft-86ft

Overall

9862

Females

2554

F40-44

2554

35K→23M

21.8 - 23.0 mi

Top 32%
×5story building
+23ft-63ft

Overall

9096

Females

2313

F40-44

2313

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

10233

Females

2928

F40-44

2928

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10815

Females

3324

F40-44

3324

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

10992

Females

3486

F40-44

3486

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

13460

Females

4668

F40-44

4668

Passing Analysis

Category:
Athletes Passed
3703
Passed By
537
Net Change
+3166
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15656
5K → 10K534155+379#15656#15277
10K → 15K43365+368#15277#14909
15K → 20K34862+286#14909#14623
20K → Half7612+64#14623#14559
Half → 25K31439+275#14559#14284
25K → 30K62618+608#14284#13676
30K → 20M3176+311#13676#13365
20M → 21M23814+224#13365#13141
21M → 35K1283+125#13141#13016
35K → 23M2844+280#13016#12736
23M → 24M16118+143#12736#12593
24M → 40K12923+106#12593#12487
40K → 25.2M5119+32#12487#12455
25.2M → Finish6499-35#12455#12490
TOTALS3703537+3166
📊

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