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BOSTON MARATHON 2025

Alexis Barrera

Bib: 28267•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
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
27:59
Rank: #22445
Start → 5K
27:59 | 9:00/mi
10K· 6.21 mi
55:05
Rank: #21791 (+654)
5K → 10K
27:06 | 8:43/mi
15K· 9.32 mi
1:23:10
Rank: #21932 (-141)
10K → 15K
28:05 | 9:02/mi
20K· 12.43 mi
1:53:48
Rank: #22611 (-679)
15K → 20K
30:38 | 9:52/mi
Half· 13.11 mi
2:00:41
Rank: #22795 (-184)
20K → Half
6:53 | 10:05/mi
25K· 15.53 mi
2:25:46
Rank: #23068 (-273)
Half → 25K
25:05 | 10:21/mi
30K· 18.64 mi
3:06:12
Rank: #24207 (-1139)
25K → 30K
40:26 | 13:01/mi
20M
3:22:54
Rank: #24358 (-151)
30K → 20M
16:42 | 12:17/mi
21M
3:34:30
Rank: #24263 (+95)
20M → 21M
11:36 | 11:36/mi
35K· 21.75 mi
3:41:30
Rank: #24129 (+134)
21M → 35K
7:00 | 9:21/mi
23M
3:54:53
Rank: #24028 (+101)
35K → 23M
13:23 | 10:41/mi
24M
4:05:27
Rank: #23985 (+43)
23M → 24M
10:34 | 10:34/mi
40K· 24.85 mi
4:14:27
Rank: #23919 (+66)
24M → 40K
9:00 | 10:32/mi
25.2M
4:18:13
Rank: #23872 (+47)
40K → 25.2M
3:46 | 10:55/mi
Finish· 26.22 mi
4:28:01
Rank: #23813 (+59)
25.2M → Finish
9:48 | 9:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:41
Pace9:12 /mi
2nd Half
Distance13.11 mi
Time2:27:20
Pace11:14 /mi
📊Positive Split: 22.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:0827:599:0027:59
9:00
-
10K
6.21 mi12:12:1455:058:5227:06
8:43
-0:17
15K
9.32 mi12:40:191:23:108:5528:05
9:02
+0:19
20K
12.43 mi13:10:571:53:489:0930:38
9:52
+0:50
Half
13.11 mi13:17:502:00:419:126:53
10:05
+0:13
25K
15.53 mi13:42:552:25:469:2325:05
10:21
+0:16
30K
18.64 mi14:23:213:06:129:5940:26
13:01
+2:40
20M
20.00 mi14:40:033:22:5410:0916:42
12:17
-0:44
21M
21.00 mi14:51:393:34:3010:1311:36
11:36
-0:41
35K
21.75 mi14:58:393:41:3010:117:00
9:21
-2:15
23M
23.00 mi15:12:023:54:5310:1313:23
10:41
+1:20
24M
24.00 mi15:22:364:05:2710:1410:34
10:34
-0:07
40K
24.85 mi15:31:364:14:2710:149:00
10:32
-0:02
25.2M
25.20 mi15:35:224:18:1310:153:46
10:55
+0:23
Finish
26.22 mi15:45:104:28:0110:149:48
9:37
-1:18

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

8:43 /mi

Average Pace

10:14 /mi

Slowest Pace

13:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:39:58

37% of race

Time at Steady Pace

1:39:19

37% of race

Time at Slower Pace

1:08:44

26% of race

Average Pace: 10:13 /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 mi11:45:0827:599:0027:59
9:00
#22445
10K
6.21 mi12:12:1455:058:5227:06
8:43
#21791
15K
9.32 mi12:40:191:23:108:5528:05
9:02
#21932
20K
12.43 mi13:10:571:53:489:0930:38
9:52
#22611
Half
13.11 mi13:17:502:00:419:126:53
10:05
#22795
25K
15.53 mi13:42:552:25:469:2325:05
10:21
#23068
30K
18.64 mi14:23:213:06:129:5940:26
13:01
#24207
20M
20.00 mi14:40:033:22:5410:0916:42
12:17
#24358
21M
21.00 mi14:51:393:34:3010:1311:36
11:36
#24263
35K
21.75 mi14:58:393:41:3010:117:00
9:21
#24129
23M
23.00 mi15:12:023:54:5310:1313:23
10:41
#24028
24M
24.00 mi15:22:364:05:2710:1410:34
10:34
#23985
40K
24.85 mi15:31:364:14:2710:149:00
10:32
#23919
25.2M
25.20 mi15:35:224:18:1310:153:46
10:55
#23872
Finish
26.22 mi15:45:104:28:0110:149:48
9:37
#23813
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi224458880888022222(Top 78%)8678(Top 71%)8678(Top 159%)
10K6.21 mi3.10 mi21791+6548497+3838497+38321023(Top 74%)8032(Top 66%)8032(Top 147%)
15K9.32 mi3.11 mi21932-1418562-658562-6522222(Top 78%)8678(Top 71%)8678(Top 159%)
20K12.43 mi3.11 mi22611-6798913-3518913-35123913(Top 84%)9658(Top 79%)9658(Top 177%)
Half13.11 mi0.68 mi22795-1849009-969009-9625015(Top 88%)10262(Top 84%)10262(Top 188%)
25K15.53 mi2.42 mi23068-2739177-1689177-16824064(Top 85%)9778(Top 80%)9778(Top 179%)
30K18.64 mi3.11 mi24207-11399840-6639840-66326696(Top 94%)11331(Top 93%)11331(Top 207%)
20M20.00 mi1.36 mi24358-1519941-1019941-10125664(Top 90%)10828(Top 89%)10828(Top 198%)
21M21.00 mi1.00 mi24263+959907+349907+3422829(Top 80%)9413(Top 77%)9413(Top 172%)
35K21.75 mi0.75 mi24129+1349838+699838+6919840(Top 70%)7906(Top 65%)7906(Top 145%)
23M23.00 mi1.25 mi24028+1019809+299809+2922512(Top 79%)9352(Top 76%)9352(Top 171%)
24M24.00 mi1.00 mi23985+439797+129797+1223007(Top 81%)9643(Top 79%)9643(Top 176%)
40K24.85 mi0.85 mi23919+669774+239774+2322020(Top 78%)9211(Top 75%)9211(Top 168%)
25.2M25.20 mi0.35 mi23872+479760+149760+1420458(Top 72%)8406(Top 69%)8406(Top 154%)
Finish26.22 mi1.02 mi23813+599743+179743+1721639(Top 76%)8986(Top 73%)8986(Top 164%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21stories
+97ft-345ft

Overall

22222

Females

8678

F18-39

8678

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

21023

Females

8032

F18-39

8032

10K→15K

6.2 - 9.3 mi

Top 78%
×3stories
+67ft-78ft

Overall

22222

Females

8678

F18-39

8678

15K→20K

9.3 - 12.4 mi

Top 84%
×5stories
+106ft-86ft

Overall

23913

Females

9658

F18-39

9658

20K→Half

12.4 - 13.1 mi

Top 88%
×2stories
+19ft-37ft

Overall

25015

Females

10262

F18-39

10262

Half→25K

13.1 - 15.5 mi

Top 85%
×4stories
+66ft-88ft

Overall

24064

Females

9778

F18-39

9778

25K→30K

15.5 - 18.6 mi

Top 94%
×9stories
+181ft-148ft

Overall

26696

Females

11331

F18-39

11331

30K→20M

18.6 - 20.0 mi

Top 90%
×5stories
+64ft-50ft

Overall

25664

Females

10828

F18-39

10828

20M→21M

20.0 - 21.0 mi

Top 80%
×8stories
+106ft-24ft

Overall

22829

Females

9413

F18-39

9413

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

19840

Females

7906

F18-39

7906

35K→23M

21.8 - 23.0 mi

Top 79%
×5stories
+23ft-63ft

Overall

22512

Females

9352

F18-39

9352

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

23007

Females

9643

F18-39

9643

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22020

Females

9211

F18-39

9211

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20458

Females

8406

F18-39

8406

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2stories
+22ft-21ft

Overall

21639

Females

8986

F18-39

8986

Passing Analysis

Category:
Athletes Passed
1686
Passed By
3054
Net Change
-1368
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22445
5K → 10K71460+654#22445#21791
10K → 15K159300-141#21791#21932
15K → 20K54733-679#21932#22611
20K → Half8192-184#22611#22795
Half → 25K66339-273#22795#23068
25K → 30K111150-1139#23068#24207
30K → 20M32183-151#24207#24358
20M → 21M11520+95#24358#24263
21M → 35K1340+134#24263#24129
35K → 23M12019+101#24129#24028
23M → 24M6926+43#24028#23985
24M → 40K7812+66#23985#23919
40K → 25.2M514+47#23919#23872
25.2M → Finish7516+59#23872#23813
TOTALS16863054-1368
📊

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