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BOSTON MARATHON 2025

Anna Barrow

CO

Bib: 16132 F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 38%
Gender (Female)
#0 / 12228
Top 21%
Division (F18-39)
#0 / 5469
Top 37%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:19/mi
22:43
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:26/mi
45:48
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:27/mi
1:08:56
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:31/mi
1:32:16
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:33/mi
1:37:25
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:33/mi
1:55:43
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:51/mi
2:20:07
↑ 181↓ 1480.2%
138 ft elev
20M
8:03/mi
2:31:03
↑ 64↓ 500.2%
148 ft elev
21M
8:44/mi
2:39:47
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:00/mi
2:45:46
↑ 17↓ 861.7%
156 ft elev
23M
8:09/mi
2:55:58
↑ 23↓ 630.6%
116 ft elev
24M
8:06/mi
3:04:04
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:21/mi
3:11:12
↓ 200.3%
20 ft elev
25.2M
8:51/mi
3:14:15
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:36/mi
3:22:00
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:25
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time1:44:35
Pace7:59 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:0122:437:1922:43
7:19
-
10K
6.21 mi11:19:0645:487:2223:05
7:26
+0:07
15K
9.32 mi11:42:141:08:567:2423:08
7:27
+0:01
20K
12.43 mi12:05:341:32:167:2523:20
7:31
+0:04
Half
13.11 mi12:10:431:37:257:265:09
7:33
+0:02
25K
15.53 mi12:29:011:55:437:2718:18
7:33
0:00
30K
18.64 mi12:53:252:20:077:3124:24
7:51
+0:18
20M
20.00 mi13:04:212:31:037:3310:56
8:03
+0:12
21M
21.00 mi13:13:052:39:477:378:44
8:44
+0:41
35K
21.75 mi13:19:042:45:467:375:59
8:00
-0:44
23M
23.00 mi13:29:162:55:587:3910:12
8:09
+0:09
24M
24.00 mi13:37:223:04:047:408:06
8:06
-0:03
40K
24.85 mi13:44:303:11:127:427:08
8:21
+0:15
25.2M
25.20 mi13:47:333:14:157:433:03
8:51
+0:30
Finish
26.22 mi13:55:183:22:007:437:45
7:36
-1:15

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

7:19 /mi

Average Pace

7:43 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:28

61% of race

Time at Steady Pace

41:19

20% of race

Time at Slower Pace

37:13

18% of race

Average Pace: 7:42 /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 mi10:56:0122:437:1922:43
7:19
#10499
10K
6.21 mi11:19:0645:487:2223:05
7:26
#10972
15K
9.32 mi11:42:141:08:567:2423:08
7:27
#11029
20K
12.43 mi12:05:341:32:167:2523:20
7:31
#10977
Half
13.11 mi12:10:431:37:257:265:09
7:33
#11041
25K
15.53 mi12:29:011:55:437:2718:18
7:33
#10889
30K
18.64 mi12:53:252:20:077:3124:24
7:51
#10733
20M
20.00 mi13:04:212:31:037:3310:56
8:03
#10717
21M
21.00 mi13:13:052:39:477:378:44
8:44
#10744
35K
21.75 mi13:19:042:45:467:375:59
8:00
#10790
23M
23.00 mi13:29:162:55:587:3910:12
8:09
#10744
24M
24.00 mi13:37:223:04:047:408:06
8:06
#10772
40K
24.85 mi13:44:303:11:127:427:08
8:21
#10810
25.2M
25.20 mi13:47:333:14:157:433:03
8:51
#10803
Finish
26.22 mi13:55:183:22:007:437:45
7:36
#10728
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi104992036203611307(Top 40%)2534(Top 21%)2534(Top 46%)
10K6.21 mi3.10 mi10972-4732292-2562292-25611470(Top 40%)2549(Top 21%)2549(Top 47%)
15K9.32 mi3.11 mi11029-572335-432335-4311307(Top 40%)2534(Top 21%)2534(Top 46%)
20K12.43 mi3.11 mi10977+522327+82327+810865(Top 38%)2404(Top 20%)2404(Top 44%)
Half13.11 mi0.68 mi11041-642363-362363-3612159(Top 43%)3020(Top 25%)3020(Top 55%)
25K15.53 mi2.42 mi10889+1522328+352328+3510371(Top 37%)2275(Top 19%)2275(Top 42%)
30K18.64 mi3.11 mi10733+1562330-22330-210324(Top 36%)2447(Top 20%)2447(Top 45%)
20M20.00 mi1.36 mi10717+162366-362366-3610761(Top 38%)2808(Top 23%)2808(Top 51%)
21M21.00 mi1.00 mi10744-272415-492415-4911895(Top 42%)3532(Top 29%)3532(Top 65%)
35K21.75 mi0.75 mi10790-462467-522467-5212262(Top 43%)3769(Top 31%)3769(Top 69%)
23M23.00 mi1.25 mi10744+462484-172484-1711037(Top 39%)3239(Top 26%)3239(Top 59%)
24M24.00 mi1.00 mi10772-282534-502534-5011912(Top 42%)3751(Top 31%)3751(Top 69%)
40K24.85 mi0.85 mi10810-382591-572591-5712429(Top 44%)4138(Top 34%)4138(Top 76%)
25.2M25.20 mi0.35 mi10803+72600-92600-910958(Top 39%)3452(Top 28%)3452(Top 63%)
Finish26.22 mi1.02 mi10728+752593+72593+710001(Top 35%)2983(Top 24%)2983(Top 55%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

11307

Females

2534

F18-39

2534

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

11470

Females

2549

F18-39

2549

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

11307

Females

2534

F18-39

2534

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

10865

Females

2404

F18-39

2404

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

12159

Females

3020

F18-39

3020

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

10371

Females

2275

F18-39

2275

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

10324

Females

2447

F18-39

2447

30K→20M

18.6 - 20.0 mi

Top 38%
×5story building
+64ft-50ft

Overall

10761

Females

2808

F18-39

2808

20M→21M

20.0 - 21.0 mi

Top 42%
×8story building
+106ft-24ft

Overall

11895

Females

3532

F18-39

3532

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

12262

Females

3769

F18-39

3769

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

11037

Females

3239

F18-39

3239

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11912

Females

3751

F18-39

3751

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12429

Females

4138

F18-39

4138

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

10958

Females

3452

F18-39

3452

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2story building
+22ft-21ft

Overall

10001

Females

2983

F18-39

2983

Passing Analysis

Category:
Athletes Passed
1678
Passed By
1907
Net Change
-229
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10499
5K → 10K101574-473#10499#10972
10K → 15K151208-57#10972#11029
15K → 20K197145+52#11029#10977
20K → Half1882-64#10977#11041
Half → 25K23987+152#11041#10889
25K → 30K314158+156#10889#10733
30K → 20M119103+16#10733#10717
20M → 21M90117-27#10717#10744
21M → 35K4187-46#10744#10790
35K → 23M13488+46#10790#10744
23M → 24M6795-28#10744#10772
24M → 40K5795-38#10772#10810
40K → 25.2M3326+7#10810#10803
25.2M → Finish11742+75#10803#10728
TOTALS16781907-229
📊

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