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BOSTON MARATHON 2025

Carrie Birth-Davis

Bib: 5863•F

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 22%
Gender (Female)
#0 / 12228
Top 6%
Masters (Masters Women)
#0 / 6759
Top 2%
Division (F40-44)
#0 / 1718
Top 4%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:58
Rank: #5913
Start → 5K
20:58 | 6:45/mi
10K· 6.21 mi
42:05
Rank: #6047 (-134)
5K → 10K
21:07 | 6:48/mi
15K· 9.32 mi
1:03:23
Rank: #6221 (-174)
10K → 15K
21:18 | 6:51/mi
20K· 12.43 mi
1:24:45
Rank: #6114 (+107)
15K → 20K
21:22 | 6:53/mi
Half· 13.11 mi
1:29:20
Rank: #6082 (+32)
20K → Half
4:35 | 6:43/mi
25K· 15.53 mi
1:46:20
Rank: #6125 (-43)
Half → 25K
17:00 | 7:01/mi
30K· 18.64 mi
2:08:51
Rank: #6051 (+74)
25K → 30K
22:31 | 7:15/mi
20M
2:19:05
Rank: #6095 (-44)
30K → 20M
10:14 | 7:32/mi
21M
2:27:04
Rank: #6116 (-21)
20M → 21M
7:59 | 7:59/mi
35K· 21.75 mi
2:32:38
Rank: #6138 (-22)
21M → 35K
5:34 | 7:26/mi
23M
2:42:13
Rank: #6137 (+1)
35K → 23M
9:35 | 7:39/mi
24M
2:49:51
Rank: #6178 (-41)
23M → 24M
7:38 | 7:38/mi
40K· 24.85 mi
2:56:33
Rank: #6215 (-37)
24M → 40K
6:42 | 7:50/mi
25.2M
2:59:32
Rank: #6244 (-29)
40K → 25.2M
2:59 | 8:39/mi
Finish· 26.22 mi
3:07:15
Rank: #6290 (-46)
25.2M → Finish
7:43 | 7:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:20
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:37:55
Pace7:28 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:1720:586:4520:58
6:45
-
10K
6.21 mi10:46:2442:056:4621:07
6:48
+0:03
15K
9.32 mi11:07:421:03:236:4821:18
6:51
+0:03
20K
12.43 mi11:29:041:24:456:4921:22
6:53
+0:02
Half
13.11 mi11:33:391:29:206:494:35
6:43
-0:10
25K
15.53 mi11:50:391:46:206:5117:00
7:01
+0:18
30K
18.64 mi12:13:102:08:516:5522:31
7:15
+0:14
20M
20.00 mi12:23:242:19:056:5710:14
7:32
+0:17
21M
21.00 mi12:31:232:27:047:007:59
7:59
+0:27
35K
21.75 mi12:36:572:32:387:015:34
7:26
-0:33
23M
23.00 mi12:46:322:42:137:039:35
7:39
+0:13
24M
24.00 mi12:54:102:49:517:057:38
7:38
-0:01
40K
24.85 mi13:00:522:56:337:066:42
7:50
+0:12
25.2M
25.20 mi13:03:512:59:327:072:59
8:39
+0:49
Finish
26.22 mi13:11:343:07:157:097:43
7:34
-1:05

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

6:43 /mi

Average Pace

7:09 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:20

57% of race

Time at Steady Pace

1:03:15

34% of race

Time at Slower Pace

17:40

9% of race

Average Pace: 7:08 /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 mi10:25:1720:586:4520:58
6:45
#5913
10K
6.21 mi10:46:2442:056:4621:07
6:48
#6047
15K
9.32 mi11:07:421:03:236:4821:18
6:51
#6221
20K
12.43 mi11:29:041:24:456:4921:22
6:53
#6114
Half
13.11 mi11:33:391:29:206:494:35
6:43
#6082
25K
15.53 mi11:50:391:46:206:5117:00
7:01
#6125
30K
18.64 mi12:13:102:08:516:5522:31
7:15
#6051
20M
20.00 mi12:23:242:19:056:5710:14
7:32
#6095
21M
21.00 mi12:31:232:27:047:007:59
7:59
#6116
35K
21.75 mi12:36:572:32:387:015:34
7:26
#6138
23M
23.00 mi12:46:322:42:137:039:35
7:39
#6137
24M
24.00 mi12:54:102:49:517:057:38
7:38
#6178
40K
24.85 mi13:00:522:56:337:066:42
7:50
#6215
25.2M
25.20 mi13:03:512:59:327:072:59
8:39
#6244
Finish
26.22 mi13:11:343:07:157:097:43
7:34
#6290
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi59134614616665(Top 23%)652(Top 5%)652(Top 38%)
10K6.21 mi3.10 mi6047-134490-29490-296380(Top 22%)585(Top 5%)585(Top 34%)
15K9.32 mi3.11 mi6221-174519-29519-296665(Top 23%)652(Top 5%)652(Top 38%)
20K12.43 mi3.11 mi6114+107524-5524-56041(Top 21%)560(Top 5%)560(Top 33%)
Half13.11 mi0.68 mi6082+32521+3521+35535(Top 19%)460(Top 4%)460(Top 27%)
25K15.53 mi2.42 mi6125-43555-34555-346414(Top 23%)695(Top 6%)695(Top 40%)
30K18.64 mi3.11 mi6051+74562-7562-76164(Top 22%)716(Top 6%)716(Top 42%)
20M20.00 mi1.36 mi6095-44588-26588-267217(Top 25%)1219(Top 10%)1219(Top 71%)
21M21.00 mi1.00 mi6116-21610-22610-227272(Top 26%)1412(Top 12%)1412(Top 82%)
35K21.75 mi0.75 mi6138-22617-7617-78232(Top 29%)1760(Top 14%)1760(Top 102%)
23M23.00 mi1.25 mi6137+1639-22639-227620(Top 27%)1654(Top 14%)1654(Top 96%)
24M24.00 mi1.00 mi6178-41667-28667-288661(Top 30%)2156(Top 18%)2156(Top 125%)
40K24.85 mi0.85 mi6215-37699-32699-329032(Top 32%)2453(Top 20%)2453(Top 143%)
25.2M25.20 mi0.35 mi6244-29718-19718-199728(Top 34%)2854(Top 23%)2854(Top 166%)
Finish26.22 mi1.02 mi6290-46758-40758-409745(Top 34%)2863(Top 23%)2863(Top 167%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21stories
+97ft-345ft

Overall

6665

Females

652

F40-44

652

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

6380

Females

585

F40-44

585

10K→15K

6.2 - 9.3 mi

Top 23%
×3stories
+67ft-78ft

Overall

6665

Females

652

F40-44

652

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

6041

Females

560

F40-44

560

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5535

Females

460

F40-44

460

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

6414

Females

695

F40-44

695

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

6164

Females

716

F40-44

716

30K→20M

18.6 - 20.0 mi

Top 25%
×5stories
+64ft-50ft

Overall

7217

Females

1219

F40-44

1219

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

7272

Females

1412

F40-44

1412

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

8232

Females

1760

F40-44

1760

35K→23M

21.8 - 23.0 mi

Top 27%
×5stories
+23ft-63ft

Overall

7620

Females

1654

F40-44

1654

23M→24M

23.0 - 24.0 mi

Top 30%
×6stories
+12ft-82ft

Overall

8661

Females

2156

F40-44

2156

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

9032

Females

2453

F40-44

2453

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9728

Females

2854

F40-44

2854

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

9745

Females

2863

F40-44

2863

Passing Analysis

Category:
Athletes Passed
1173
Passed By
1550
Net Change
-377
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5913
5K → 10K128262-134#5913#6047
10K → 15K94268-174#6047#6221
15K → 20K19891+107#6221#6114
20K → Half364+32#6114#6082
Half → 25K118161-43#6082#6125
25K → 30K208134+74#6125#6051
30K → 20M5498-44#6051#6095
20M → 21M6586-21#6095#6116
21M → 35K3153-22#6116#6138
35K → 23M8685+1#6138#6137
23M → 24M4990-41#6137#6178
24M → 40K3976-37#6178#6215
40K → 25.2M2049-29#6215#6244
25.2M → Finish4793-46#6244#6290
TOTALS11731550-377
📊

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