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BOSTON MARATHON 2025

Chrystal Akor

Bib: 29503•F

GA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
39:54
Rank: #28368
Start → 5K
39:54 | 12:51/mi
10K· 6.21 mi
1:19:57
Rank: #28355 (+13)
5K → 10K
40:03 | 12:53/mi
15K· 9.32 mi
2:01:39
Rank: #28349 (+6)
10K → 15K
41:42 | 13:25/mi
20K· 12.43 mi
2:45:38
Rank: #28352 (-3)
15K → 20K
43:59 | 14:09/mi
Half· 13.11 mi
2:55:00
Rank: #28355 (-3)
20K → Half
9:22 | 13:44/mi
25K· 15.53 mi
3:31:05
Rank: #28354 (+1)
Half → 25K
36:05 | 14:53/mi
30K· 18.64 mi
4:17:08
Rank: #28330 (+24)
25K → 30K
46:03 | 14:49/mi
20M
4:37:36
Rank: #28327 (+3)
30K → 20M
20:28 | 15:04/mi
21M
4:54:16
Rank: #28328 (-1)
20M → 21M
16:40 | 16:40/mi
35K· 21.75 mi
5:04:30
Rank: #28327 (+1)
21M → 35K
10:14 | 13:41/mi
23M
5:22:59
Rank: #28324 (+3)
35K → 23M
18:29 | 14:46/mi
24M
5:36:34
Rank: #28317 (+7)
23M → 24M
13:35 | 13:35/mi
40K· 24.85 mi
5:48:34
Rank: #28312 (+5)
24M → 40K
12:00 | 14:02/mi
25.2M
5:53:36
Rank: #28310 (+2)
40K → 25.2M
5:02 | 14:36/mi
Finish· 26.22 mi
6:07:11
Rank: #28304 (+6)
25.2M → Finish
13:35 | 13:20/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:55:00
Pace13:21 /mi
2nd Half
Distance13.11 mi
Time3:12:11
Pace14:40 /mi
📊Positive Split: 9.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:57:3939:5412:5139:54
12:51
-
10K
6.21 mi12:37:421:19:5712:5240:03
12:53
+0:02
15K
9.32 mi13:19:242:01:3913:0341:42
13:25
+0:32
20K
12.43 mi14:03:232:45:3813:2043:59
14:09
+0:44
Half
13.11 mi14:12:452:55:0013:219:22
13:44
-0:25
25K
15.53 mi14:48:503:31:0513:3536:05
14:53
+1:09
30K
18.64 mi15:34:534:17:0813:4846:03
14:49
-0:04
20M
20.00 mi15:55:214:37:3613:5320:28
15:04
+0:15
21M
21.00 mi16:12:014:54:1614:0116:40
16:40
+1:36
35K
21.75 mi16:22:155:04:3014:0010:14
13:41
-2:59
23M
23.00 mi16:40:445:22:5914:0318:29
14:46
+1:05
24M
24.00 mi16:54:195:36:3414:0113:35
13:35
-1:11
40K
24.85 mi17:06:195:48:3414:0112:00
14:02
+0:27
25.2M
25.20 mi17:11:215:53:3614:025:02
14:36
+0:34
Finish
26.22 mi17:24:566:07:1114:0113:35
13:20
-1:16

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

12:51 /mi

Average Pace

14:01 /mi

Slowest Pace

16:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:15:14

37% of race

Time at Steady Pace

1:29:10

24% of race

Time at Slower Pace

2:22:47

39% of race

Average Pace: 14:00 /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 mi11:57:3939:5412:5139:54
12:51
#28368
10K
6.21 mi12:37:421:19:5712:5240:03
12:53
#28355
15K
9.32 mi13:19:242:01:3913:0341:42
13:25
#28349
20K
12.43 mi14:03:232:45:3813:2043:59
14:09
#28352
Half
13.11 mi14:12:452:55:0013:219:22
13:44
#28355
25K
15.53 mi14:48:503:31:0513:3536:05
14:53
#28354
30K
18.64 mi15:34:534:17:0813:4846:03
14:49
#28330
20M
20.00 mi15:55:214:37:3613:5320:28
15:04
#28327
21M
21.00 mi16:12:014:54:1614:0116:40
16:40
#28328
35K
21.75 mi16:22:155:04:3014:0010:14
13:41
#28327
23M
23.00 mi16:40:445:22:5914:0318:29
14:46
#28324
24M
24.00 mi16:54:195:36:3414:0113:35
13:35
#28317
40K
24.85 mi17:06:195:48:3414:0112:00
14:02
#28312
25.2M
25.20 mi17:11:215:53:3614:025:02
14:36
#28310
Finish
26.22 mi17:24:566:07:1114:0113:35
13:20
#28304
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi28368122071220728285(Top 100%)12164(Top 99%)12164(Top 708%)
10K6.21 mi3.10 mi28355+1312196+1112196+1128306(Top 100%)12172(Top 100%)12172(Top 708%)
15K9.32 mi3.11 mi28349+612197-112197-128285(Top 100%)12164(Top 99%)12164(Top 708%)
20K12.43 mi3.11 mi28352-312199-212199-228274(Top 100%)12166(Top 99%)12166(Top 708%)
Half13.11 mi0.68 mi28355-312200-112200-128229(Top 99%)12144(Top 99%)12144(Top 707%)
25K15.53 mi2.42 mi28354+112202-212202-228209(Top 99%)12130(Top 99%)12130(Top 706%)
30K18.64 mi3.11 mi28330+2412192+1012192+1027957(Top 98%)12030(Top 98%)12030(Top 700%)
20M20.00 mi1.36 mi28327+3121921219227897(Top 98%)12008(Top 98%)12008(Top 699%)
21M21.00 mi1.00 mi28328-112194-212194-228068(Top 99%)12092(Top 99%)12092(Top 704%)
35K21.75 mi0.75 mi28327+112195-112195-127481(Top 97%)11848(Top 97%)11848(Top 690%)
23M23.00 mi1.25 mi28324+312193+212193+227801(Top 98%)12002(Top 98%)12002(Top 699%)
24M24.00 mi1.00 mi28317+712192+112192+127391(Top 96%)11846(Top 97%)11846(Top 690%)
40K24.85 mi0.85 mi28312+512189+312189+327199(Top 96%)11746(Top 96%)11746(Top 684%)
25.2M25.20 mi0.35 mi28310+2121891218926816(Top 94%)11581(Top 95%)11581(Top 674%)
Finish26.22 mi1.02 mi28304+612187+212187+227786(Top 98%)11997(Top 98%)11997(Top 698%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 100%
×21stories
+97ft-345ft

Overall

28285

Females

12164

F40-44

12164

5K→10K

3.1 - 6.2 mi

Top 100%
×5stories
+79ft-138ft

Overall

28306

Females

12172

F40-44

12172

10K→15K

6.2 - 9.3 mi

Top 100%
×3stories
+67ft-78ft

Overall

28285

Females

12164

F40-44

12164

15K→20K

9.3 - 12.4 mi

Top 100%
×5stories
+106ft-86ft

Overall

28274

Females

12166

F40-44

12166

20K→Half

12.4 - 13.1 mi

Top 99%
×2stories
+19ft-37ft

Overall

28229

Females

12144

F40-44

12144

Half→25K

13.1 - 15.5 mi

Top 99%
×4stories
+66ft-88ft

Overall

28209

Females

12130

F40-44

12130

25K→30K

15.5 - 18.6 mi

Top 98%
×9stories
+181ft-148ft

Overall

27957

Females

12030

F40-44

12030

30K→20M

18.6 - 20.0 mi

Top 98%
×5stories
+64ft-50ft

Overall

27897

Females

12008

F40-44

12008

20M→21M

20.0 - 21.0 mi

Top 99%
×8stories
+106ft-24ft

Overall

28068

Females

12092

F40-44

12092

21M→35K

21.0 - 21.8 mi

Top 97%
×7stories
+17ft-86ft

Overall

27481

Females

11848

F40-44

11848

35K→23M

21.8 - 23.0 mi

Top 98%
×5stories
+23ft-63ft

Overall

27801

Females

12002

F40-44

12002

23M→24M

23.0 - 24.0 mi

Top 96%
×6stories
+12ft-82ft

Overall

27391

Females

11846

F40-44

11846

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

27199

Females

11746

F40-44

11746

40K→25.2M

24.9 - 25.2 mi

Top 94%
×1story
+13ft-16ft

Overall

26816

Females

11581

F40-44

11581

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2stories
+22ft-21ft

Overall

27786

Females

11997

F40-44

11997

Passing Analysis

Category:
Athletes Passed
115
Passed By
51
Net Change
+64
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28368
5K → 10K196+13#28368#28355
10K → 15K148+6#28355#28349
15K → 20K710-3#28349#28352
20K → Half03-3#28352#28355
Half → 25K54+1#28355#28354
25K → 30K262+24#28354#28330
30K → 20M52+3#28330#28327
20M → 21M56-1#28327#28328
21M → 35K32+1#28328#28327
35K → 23M52+3#28327#28324
23M → 24M103+7#28324#28317
24M → 40K61+5#28317#28312
40K → 25.2M20+2#28312#28310
25.2M → Finish82+6#28310#28304
TOTALS11551+64
📊

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