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BOSTON MARATHON 2025

Ann Byars

Bib: 15569•F

VA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 38%
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
24:57
Rank: #16838
Start → 5K
24:57 | 8:02/mi
10K· 6.21 mi
49:56
Rank: #16804 (+34)
5K → 10K
24:59 | 8:02/mi
15K· 9.32 mi
1:15:22
Rank: #16971 (-167)
10K → 15K
25:26 | 8:11/mi
20K· 12.43 mi
1:41:18
Rank: #17046 (-75)
15K → 20K
25:56 | 8:21/mi
Half· 13.11 mi
1:46:41
Rank: #16944 (+102)
20K → Half
5:23 | 7:53/mi
25K· 15.53 mi
2:06:17
Rank: #16509 (+435)
Half → 25K
19:36 | 8:05/mi
30K· 18.64 mi
2:31:50
Rank: #15840 (+669)
25K → 30K
25:33 | 8:13/mi
20M
2:43:12
Rank: #15552 (+288)
30K → 20M
11:22 | 8:22/mi
21M
2:51:58
Rank: #15325 (+227)
20M → 21M
8:46 | 8:46/mi
35K· 21.75 mi
2:58:06
Rank: #15213 (+112)
21M → 35K
6:08 | 8:12/mi
23M
3:08:40
Rank: #15057 (+156)
35K → 23M
10:34 | 8:26/mi
24M
3:17:00
Rank: #14937 (+120)
23M → 24M
8:20 | 8:20/mi
40K· 24.85 mi
3:24:14
Rank: #14855 (+82)
24M → 40K
7:14 | 8:28/mi
25.2M
3:27:20
Rank: #14796 (+59)
40K → 25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:35:25
Rank: #14666 (+130)
25.2M → Finish
8:05 | 7:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:41
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time1:48:44
Pace8:18 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:3824:578:0224:57
8:02
-
10K
6.21 mi11:21:3749:568:0224:59
8:02
0:00
15K
9.32 mi11:47:031:15:228:0525:26
8:11
+0:09
20K
12.43 mi12:12:591:41:188:0925:56
8:21
+0:10
Half
13.11 mi12:18:221:46:418:085:23
7:53
-0:28
25K
15.53 mi12:37:582:06:178:0819:36
8:05
+0:12
30K
18.64 mi13:03:312:31:508:0925:33
8:13
+0:08
20M
20.00 mi13:14:532:43:128:1011:22
8:22
+0:09
21M
21.00 mi13:23:392:51:588:118:46
8:46
+0:24
35K
21.75 mi13:29:472:58:068:116:08
8:12
-0:34
23M
23.00 mi13:40:213:08:408:1210:34
8:26
+0:14
24M
24.00 mi13:48:413:17:008:138:20
8:20
-0:06
40K
24.85 mi13:55:553:24:148:137:14
8:28
+0:08
25.2M
25.20 mi13:59:013:27:208:143:06
8:59
+0:31
Finish
26.22 mi14:07:063:35:258:138:05
7:56
-1:03

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

7:53 /mi

Average Pace

8:13 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:23:33

94% of race

Time at Steady Pace

11:52

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:13 /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 mi10:56:3824:578:0224:57
8:02
#16838
10K
6.21 mi11:21:3749:568:0224:59
8:02
#16804
15K
9.32 mi11:47:031:15:228:0525:26
8:11
#16971
20K
12.43 mi12:12:591:41:188:0925:56
8:21
#17046
Half
13.11 mi12:18:221:46:418:085:23
7:53
#16944
25K
15.53 mi12:37:582:06:178:0819:36
8:05
#16509
30K
18.64 mi13:03:312:31:508:0925:33
8:13
#15840
20M
20.00 mi13:14:532:43:128:1011:22
8:22
#15552
21M
21.00 mi13:23:392:51:588:118:46
8:46
#15325
35K
21.75 mi13:29:472:58:068:116:08
8:12
#15213
23M
23.00 mi13:40:213:08:408:1210:34
8:26
#15057
24M
24.00 mi13:48:413:17:008:138:20
8:20
#14937
40K
24.85 mi13:55:553:24:148:137:14
8:28
#14855
25.2M
25.20 mi13:59:013:27:208:143:06
8:59
#14796
Finish
26.22 mi14:07:063:35:258:138:05
7:56
#14666
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi168385647564717310(Top 61%)5901(Top 48%)5901(Top 108%)
10K6.21 mi3.10 mi16804+345617+305617+3016787(Top 59%)5582(Top 46%)5582(Top 102%)
15K9.32 mi3.11 mi16971-1675694-775694-7717310(Top 61%)5901(Top 48%)5901(Top 108%)
20K12.43 mi3.11 mi17046-755769-755769-7517210(Top 61%)5886(Top 48%)5886(Top 108%)
Half13.11 mi0.68 mi16944+1025708+615708+6115073(Top 53%)4656(Top 38%)4656(Top 85%)
25K15.53 mi2.42 mi16509+4355464+2445464+24414540(Top 51%)4505(Top 37%)4505(Top 82%)
30K18.64 mi3.11 mi15840+6695130+3345130+33413009(Top 46%)3831(Top 31%)3831(Top 70%)
20M20.00 mi1.36 mi15552+2885002+1285002+12812960(Top 46%)3958(Top 32%)3958(Top 72%)
21M21.00 mi1.00 mi15325+2274905+974905+9712129(Top 43%)3674(Top 30%)3674(Top 67%)
35K21.75 mi0.75 mi15213+1124859+464859+4613665(Top 48%)4512(Top 37%)4512(Top 83%)
23M23.00 mi1.25 mi15057+1564801+584801+5812958(Top 46%)4252(Top 35%)4252(Top 78%)
24M24.00 mi1.00 mi14937+1204769+324769+3213506(Top 48%)4572(Top 37%)4572(Top 84%)
40K24.85 mi0.85 mi14855+824748+214748+2113214(Top 47%)4559(Top 37%)4559(Top 83%)
25.2M25.20 mi0.35 mi14796+594720+284720+2811830(Top 42%)3906(Top 32%)3906(Top 71%)
Finish26.22 mi1.02 mi14666+1304682+384682+3812461(Top 44%)4169(Top 34%)4169(Top 76%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

17310

Females

5901

F18-39

5901

5K→10K

3.1 - 6.2 mi

Top 59%
×5stories
+79ft-138ft

Overall

16787

Females

5582

F18-39

5582

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

17310

Females

5901

F18-39

5901

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

17210

Females

5886

F18-39

5886

20K→Half

12.4 - 13.1 mi

Top 53%
×2stories
+19ft-37ft

Overall

15073

Females

4656

F18-39

4656

Half→25K

13.1 - 15.5 mi

Top 51%
×4stories
+66ft-88ft

Overall

14540

Females

4505

F18-39

4505

25K→30K

15.5 - 18.6 mi

Top 46%
×9stories
+181ft-148ft

Overall

13009

Females

3831

F18-39

3831

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

12960

Females

3958

F18-39

3958

20M→21M

20.0 - 21.0 mi

Top 43%
×8stories
+106ft-24ft

Overall

12129

Females

3674

F18-39

3674

21M→35K

21.0 - 21.8 mi

Top 48%
×7stories
+17ft-86ft

Overall

13665

Females

4512

F18-39

4512

35K→23M

21.8 - 23.0 mi

Top 46%
×5stories
+23ft-63ft

Overall

12958

Females

4252

F18-39

4252

23M→24M

23.0 - 24.0 mi

Top 48%
×6stories
+12ft-82ft

Overall

13506

Females

4572

F18-39

4572

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

13214

Females

4559

F18-39

4559

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11830

Females

3906

F18-39

3906

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

12461

Females

4169

F18-39

4169

Passing Analysis

Category:
Athletes Passed
3189
Passed By
1017
Net Change
+2172
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16838
5K → 10K314280+34#16838#16804
10K → 15K158325-167#16804#16971
15K → 20K167242-75#16971#17046
20K → Half1064+102#17046#16944
Half → 25K4416+435#16944#16509
25K → 30K6756+669#16509#15840
30K → 20M29810+288#15840#15552
20M → 21M24518+227#15552#15325
21M → 35K12917+112#15325#15213
35K → 23M18428+156#15213#15057
23M → 24M14727+120#15057#14937
24M → 40K10927+82#14937#14855
40K → 25.2M689+59#14855#14796
25.2M → Finish14818+130#14796#14666
TOTALS31891017+2172
📊

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