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BOSTON MARATHON 2025

Sandra Mejia

Bib: 29291•F

IL

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:41
Rank: #24414
Start → 5K
29:41 | 9:33/mi
10K· 6.21 mi
1:00:46
Rank: #24921 (-507)
5K → 10K
31:05 | 10:00/mi
15K· 9.32 mi
1:33:37
Rank: #25399 (-478)
10K → 15K
32:51 | 10:34/mi
20K· 12.43 mi
2:07:49
Rank: #25583 (-184)
15K → 20K
34:12 | 11:00/mi
Half· 13.11 mi
2:14:51
Rank: #25575 (+8)
20K → Half
7:02 | 10:19/mi
25K· 15.53 mi
2:43:10
Rank: #25687 (-112)
Half → 25K
28:19 | 11:41/mi
30K· 18.64 mi
3:20:23
Rank: #25677 (+10)
25K → 30K
37:13 | 11:59/mi
20M
3:36:34
Rank: #25625 (+52)
30K → 20M
16:11 | 11:55/mi
21M
3:50:02
Rank: #25633 (-8)
20M → 21M
13:28 | 13:28/mi
35K· 21.75 mi
3:58:00
Rank: #25573 (+60)
21M → 35K
7:58 | 10:39/mi
23M
4:13:17
Rank: #25606 (-33)
35K → 23M
15:17 | 12:12/mi
24M
4:24:43
Rank: #25574 (+32)
23M → 24M
11:26 | 11:26/mi
40K· 24.85 mi
4:34:33
Rank: #25526 (+48)
24M → 40K
9:50 | 11:30/mi
25.2M
4:38:56
Rank: #25519 (+7)
40K → 25.2M
4:23 | 12:43/mi
Finish· 26.22 mi
4:49:21
Rank: #25465 (+54)
25.2M → Finish
10:25 | 10:13/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:51
Pace10:17 /mi
2nd Half
Distance13.11 mi
Time2:34:30
Pace11:47 /mi
📊Positive Split: 14.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:1929:419:3329:41
9:33
-
10K
6.21 mi12:19:241:00:469:4731:05
10:00
+0:27
15K
9.32 mi12:52:151:33:3710:0332:51
10:34
+0:34
20K
12.43 mi13:26:272:07:4910:1734:12
11:00
+0:26
Half
13.11 mi13:33:292:14:5110:177:02
10:19
-0:41
25K
15.53 mi14:01:482:43:1010:3028:19
11:41
+1:22
30K
18.64 mi14:39:013:20:2310:4537:13
11:59
+0:18
20M
20.00 mi14:55:123:36:3410:5016:11
11:55
-0:04
21M
21.00 mi15:08:403:50:0210:5713:28
13:28
+1:33
35K
21.75 mi15:16:383:58:0010:577:58
10:39
-2:49
23M
23.00 mi15:31:554:13:1711:0115:17
12:12
+1:33
24M
24.00 mi15:43:214:24:4311:0211:26
11:26
-0:46
40K
24.85 mi15:53:114:34:3311:039:50
11:30
+0:04
25.2M
25.20 mi15:57:344:38:5611:044:23
12:43
+1:13
Finish
26.22 mi16:07:594:49:2111:0310:25
10:13
-2:30

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

9:33 /mi

Average Pace

11:03 /mi

Slowest Pace

13:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:02

41% of race

Time at Steady Pace

1:39:58

35% of race

Time at Slower Pace

1:10:21

24% of race

Average Pace: 11:02 /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 mi11:48:1929:419:3329:41
9:33
#24414
10K
6.21 mi12:19:241:00:469:4731:05
10:00
#24921
15K
9.32 mi12:52:151:33:3710:0332:51
10:34
#25399
20K
12.43 mi13:26:272:07:4910:1734:12
11:00
#25583
Half
13.11 mi13:33:292:14:5110:177:02
10:19
#25575
25K
15.53 mi14:01:482:43:1010:3028:19
11:41
#25687
30K
18.64 mi14:39:013:20:2310:4537:13
11:59
#25677
20M
20.00 mi14:55:123:36:3410:5016:11
11:55
#25625
21M
21.00 mi15:08:403:50:0210:5713:28
13:28
#25633
35K
21.75 mi15:16:383:58:0010:577:58
10:39
#25573
23M
23.00 mi15:31:554:13:1711:0115:17
12:12
#25606
24M
24.00 mi15:43:214:24:4311:0211:26
11:26
#25574
40K
24.85 mi15:53:114:34:3311:039:50
11:30
#25526
25.2M
25.20 mi15:57:344:38:5611:044:23
12:43
#25519
Finish
26.22 mi16:07:594:49:2111:0310:25
10:13
#25465
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi244149914991426052(Top 92%)10816(Top 88%)10816(Top 830%)
10K6.21 mi3.10 mi24921-50710187-27310187-27325328(Top 89%)10419(Top 85%)10419(Top 800%)
15K9.32 mi3.11 mi25399-47810441-25410441-25426052(Top 92%)10816(Top 88%)10816(Top 830%)
20K12.43 mi3.11 mi25583-18410551-11010551-11026005(Top 92%)10812(Top 88%)10812(Top 830%)
Half13.11 mi0.68 mi25575+810550+110550+125446(Top 90%)10518(Top 86%)10518(Top 807%)
25K15.53 mi2.42 mi25687-11210622-7210622-7226072(Top 92%)10900(Top 89%)10900(Top 837%)
30K18.64 mi3.11 mi25677+1010660-3810660-3825565(Top 90%)10711(Top 88%)10711(Top 822%)
20M20.00 mi1.36 mi25625+5210641+1910641+1925122(Top 88%)10546(Top 86%)10546(Top 809%)
21M21.00 mi1.00 mi25633-810653-1210653-1225626(Top 90%)10870(Top 89%)10870(Top 834%)
35K21.75 mi0.75 mi25573+6010628+2510628+2523452(Top 83%)9784(Top 80%)9784(Top 751%)
23M23.00 mi1.25 mi25606-3310661-3310661-3325392(Top 89%)10801(Top 88%)10801(Top 829%)
24M24.00 mi1.00 mi25574+3210653+810653+824760(Top 87%)10521(Top 86%)10521(Top 807%)
40K24.85 mi0.85 mi25526+4810642+1110642+1124119(Top 85%)10230(Top 84%)10230(Top 785%)
25.2M25.20 mi0.35 mi25519+710645-310645-324534(Top 86%)10442(Top 85%)10442(Top 801%)
Finish26.22 mi1.02 mi25465+5410614+3110614+3123562(Top 83%)9961(Top 81%)9961(Top 764%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21stories
+97ft-345ft

Overall

26052

Females

10816

F50-54

10816

5K→10K

3.1 - 6.2 mi

Top 89%
×5stories
+79ft-138ft

Overall

25328

Females

10419

F50-54

10419

10K→15K

6.2 - 9.3 mi

Top 92%
×3stories
+67ft-78ft

Overall

26052

Females

10816

F50-54

10816

15K→20K

9.3 - 12.4 mi

Top 92%
×5stories
+106ft-86ft

Overall

26005

Females

10812

F50-54

10812

20K→Half

12.4 - 13.1 mi

Top 90%
×2stories
+19ft-37ft

Overall

25446

Females

10518

F50-54

10518

Half→25K

13.1 - 15.5 mi

Top 92%
×4stories
+66ft-88ft

Overall

26072

Females

10900

F50-54

10900

25K→30K

15.5 - 18.6 mi

Top 90%
×9stories
+181ft-148ft

Overall

25565

Females

10711

F50-54

10711

30K→20M

18.6 - 20.0 mi

Top 88%
×5stories
+64ft-50ft

Overall

25122

Females

10546

F50-54

10546

20M→21M

20.0 - 21.0 mi

Top 90%
×8stories
+106ft-24ft

Overall

25626

Females

10870

F50-54

10870

21M→35K

21.0 - 21.8 mi

Top 83%
×7stories
+17ft-86ft

Overall

23452

Females

9784

F50-54

9784

35K→23M

21.8 - 23.0 mi

Top 89%
×5stories
+23ft-63ft

Overall

25392

Females

10801

F50-54

10801

23M→24M

23.0 - 24.0 mi

Top 87%
×6stories
+12ft-82ft

Overall

24760

Females

10521

F50-54

10521

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

24119

Females

10230

F50-54

10230

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

24534

Females

10442

F50-54

10442

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2stories
+22ft-21ft

Overall

23562

Females

9961

F50-54

9961

Passing Analysis

Category:
Athletes Passed
803
Passed By
1854
Net Change
-1051
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24414
5K → 10K68575-507#24414#24921
10K → 15K33511-478#24921#25399
15K → 20K68252-184#25399#25583
20K → Half2416+8#25583#25575
Half → 25K66178-112#25575#25687
25K → 30K125115+10#25687#25677
30K → 20M7422+52#25677#25625
20M → 21M4452-8#25625#25633
21M → 35K688+60#25633#25573
35K → 23M3669-33#25573#25606
23M → 24M4816+32#25606#25574
24M → 40K6214+48#25574#25526
40K → 25.2M2518+7#25526#25519
25.2M → Finish628+54#25519#25465
TOTALS8031854-1051
📊

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