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BOSTON MARATHON 2025

Christina Chen

Bib: 32278•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
36:17
Rank: #28115
Start → 5K
36:17 | 11:41/mi
10K· 6.21 mi
1:10:04
Rank: #27620 (+495)
5K → 10K
33:47 | 10:52/mi
15K· 9.32 mi
1:43:20
Rank: #27185 (+435)
10K → 15K
33:16 | 10:42/mi
20K· 12.43 mi
2:17:02
Rank: #26809 (+376)
15K → 20K
33:42 | 10:51/mi
Half· 13.11 mi
2:23:51
Rank: #26731 (+78)
20K → Half
6:49 | 9:59/mi
25K· 15.53 mi
2:48:15
Rank: #26239 (+492)
Half → 25K
24:24 | 10:04/mi
30K· 18.64 mi
3:23:04
Rank: #25899 (+340)
25K → 30K
34:49 | 11:12/mi
20M
3:39:29
Rank: #25867 (+32)
30K → 20M
16:25 | 12:05/mi
21M
3:53:24
Rank: #25912 (-45)
20M → 21M
13:55 | 13:55/mi
35K· 21.75 mi
4:03:40
Rank: #25992 (-80)
21M → 35K
10:16 | 13:43/mi
23M
4:19:23
Rank: #26014 (-22)
35K → 23M
15:43 | 12:33/mi
24M
4:31:41
Rank: #26035 (-21)
23M → 24M
12:18 | 12:18/mi
40K· 24.85 mi
4:42:30
Rank: #26048 (-13)
24M → 40K
10:49 | 12:39/mi
25.2M
4:47:44
Rank: #26085 (-37)
40K → 25.2M
5:14 | 15:11/mi
Finish· 26.22 mi
5:00:25
Rank: #26150 (-65)
25.2M → Finish
12:41 | 12:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:23:51
Pace10:58 /mi
2nd Half
Distance13.11 mi
Time2:36:34
Pace11:57 /mi
📊Positive Split: 8.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:01:3136:1711:4136:17
11:41
-
10K
6.21 mi12:35:181:10:0411:1733:47
10:52
-0:49
15K
9.32 mi13:08:341:43:2011:0533:16
10:42
-0:10
20K
12.43 mi13:42:162:17:0211:0233:42
10:51
+0:09
Half
13.11 mi13:49:052:23:5110:586:49
9:59
-0:52
25K
15.53 mi14:13:292:48:1510:5024:24
10:04
+0:05
30K
18.64 mi14:48:183:23:0410:5434:49
11:12
+1:08
20M
20.00 mi15:04:433:39:2910:5816:25
12:05
+0:53
21M
21.00 mi15:18:383:53:2411:0713:55
13:55
+1:50
35K
21.75 mi15:28:544:03:4011:1210:16
13:43
-0:12
23M
23.00 mi15:44:374:19:2311:1715:43
12:33
-1:10
24M
24.00 mi15:56:554:31:4111:1912:18
12:18
-0:15
40K
24.85 mi16:07:444:42:3011:2210:49
12:39
+0:21
25.2M
25.20 mi16:12:584:47:4411:255:14
15:11
+2:32
Finish
26.22 mi16:25:395:00:2511:2812:41
12:27
-2:44

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

9:59 /mi

Average Pace

11:28 /mi

Slowest Pace

15:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:47

56% of race

Time at Steady Pace

1:44:13

35% of race

Time at Slower Pace

29:25

10% of race

Average Pace: 11:27 /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 mi12:01:3136:1711:4136:17
11:41
#28115
10K
6.21 mi12:35:181:10:0411:1733:47
10:52
#27620
15K
9.32 mi13:08:341:43:2011:0533:16
10:42
#27185
20K
12.43 mi13:42:162:17:0211:0233:42
10:51
#26809
Half
13.11 mi13:49:052:23:5110:586:49
9:59
#26731
25K
15.53 mi14:13:292:48:1510:5024:24
10:04
#26239
30K
18.64 mi14:48:183:23:0410:5434:49
11:12
#25899
20M
20.00 mi15:04:433:39:2910:5816:25
12:05
#25867
21M
21.00 mi15:18:383:53:2411:0713:55
13:55
#25912
35K
21.75 mi15:28:544:03:4011:1210:16
13:43
#25992
23M
23.00 mi15:44:374:19:2311:1715:43
12:33
#26014
24M
24.00 mi15:56:554:31:4111:1912:18
12:18
#26035
40K
24.85 mi16:07:444:42:3011:2210:49
12:39
#26048
25.2M
25.20 mi16:12:584:47:4411:255:14
15:11
#26085
Finish
26.22 mi16:25:395:00:2511:2812:41
12:27
#26150
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi28115120371203726264(Top 92%)10927(Top 89%)10927(Top 200%)
10K6.21 mi3.10 mi27620+49511714+32311714+32326878(Top 95%)11294(Top 92%)11294(Top 207%)
15K9.32 mi3.11 mi27185+43511461+25311461+25326264(Top 92%)10927(Top 89%)10927(Top 200%)
20K12.43 mi3.11 mi26809+37611249+21211249+21225780(Top 91%)10687(Top 87%)10687(Top 195%)
Half13.11 mi0.68 mi26731+7811198+5111198+5124800(Top 87%)10167(Top 83%)10167(Top 186%)
25K15.53 mi2.42 mi26239+49210914+28410914+28423414(Top 82%)9437(Top 77%)9437(Top 173%)
30K18.64 mi3.11 mi25899+34010766+14810766+14824381(Top 86%)10068(Top 82%)10068(Top 184%)
20M20.00 mi1.36 mi25867+3210764+210764+225365(Top 89%)10681(Top 87%)10681(Top 195%)
21M21.00 mi1.00 mi25912-4510798-3410798-3426134(Top 92%)11118(Top 91%)11118(Top 203%)
35K21.75 mi0.75 mi25992-8010846-4810846-4827510(Top 97%)11862(Top 97%)11862(Top 217%)
23M23.00 mi1.25 mi26014-2210868-2210868-2225855(Top 91%)11028(Top 90%)11028(Top 202%)
24M24.00 mi1.00 mi26035-2110890-2210890-2226038(Top 92%)11147(Top 91%)11147(Top 204%)
40K24.85 mi0.85 mi26048-1310900-1010900-1025852(Top 91%)11068(Top 91%)11068(Top 202%)
25.2M25.20 mi0.35 mi26085-3710931-3110931-3127235(Top 96%)11765(Top 96%)11765(Top 215%)
Finish26.22 mi1.02 mi26150-6510974-4310974-4327240(Top 96%)11738(Top 96%)11738(Top 215%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21stories
+97ft-345ft

Overall

26264

Females

10927

F18-39

10927

5K→10K

3.1 - 6.2 mi

Top 95%
×5stories
+79ft-138ft

Overall

26878

Females

11294

F18-39

11294

10K→15K

6.2 - 9.3 mi

Top 92%
×3stories
+67ft-78ft

Overall

26264

Females

10927

F18-39

10927

15K→20K

9.3 - 12.4 mi

Top 91%
×5stories
+106ft-86ft

Overall

25780

Females

10687

F18-39

10687

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

24800

Females

10167

F18-39

10167

Half→25K

13.1 - 15.5 mi

Top 82%
×4stories
+66ft-88ft

Overall

23414

Females

9437

F18-39

9437

25K→30K

15.5 - 18.6 mi

Top 86%
×9stories
+181ft-148ft

Overall

24381

Females

10068

F18-39

10068

30K→20M

18.6 - 20.0 mi

Top 89%
×5stories
+64ft-50ft

Overall

25365

Females

10681

F18-39

10681

20M→21M

20.0 - 21.0 mi

Top 92%
×8stories
+106ft-24ft

Overall

26134

Females

11118

F18-39

11118

21M→35K

21.0 - 21.8 mi

Top 97%
×7stories
+17ft-86ft

Overall

27510

Females

11862

F18-39

11862

35K→23M

21.8 - 23.0 mi

Top 91%
×5stories
+23ft-63ft

Overall

25855

Females

11028

F18-39

11028

23M→24M

23.0 - 24.0 mi

Top 92%
×6stories
+12ft-82ft

Overall

26038

Females

11147

F18-39

11147

24M→40K

24.0 - 24.9 mi

Top 91%
×1story
+6ft-20ft

Overall

25852

Females

11068

F18-39

11068

40K→25.2M

24.9 - 25.2 mi

Top 96%
×1story
+13ft-16ft

Overall

27235

Females

11765

F18-39

11765

25.2M→Finish

25.2 - 26.2 mi

Top 96%
×2stories
+22ft-21ft

Overall

27240

Females

11738

F18-39

11738

Passing Analysis

Category:
Athletes Passed
2411
Passed By
446
Net Change
+1965
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28115
5K → 10K4950+495#28115#27620
10K → 15K4361+435#27620#27185
15K → 20K3771+376#27185#26809
20K → Half780+78#26809#26731
Half → 25K4931+492#26731#26239
25K → 30K3455+340#26239#25899
30K → 20M6937+32#25899#25867
20M → 21M3176-45#25867#25912
21M → 35K989-80#25912#25992
35K → 23M3557-22#25992#26014
23M → 24M2041-21#26014#26035
24M → 40K1730-13#26035#26048
40K → 25.2M441-37#26048#26085
25.2M → Finish267-65#26085#26150
TOTALS2411446+1965
📊

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