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BOSTON MARATHON 2025

Samantha Griffith

Bib: 32241•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
30:08
Rank: #24846
Start → 5K
30:08 | 9:42/mi
10K· 6.21 mi
1:01:21
Rank: #25125 (-279)
5K → 10K
31:13 | 10:03/mi
15K· 9.32 mi
1:33:52
Rank: #25467 (-342)
10K → 15K
32:31 | 10:28/mi
20K· 12.43 mi
2:05:44
Rank: #25269 (+198)
15K → 20K
31:52 | 10:15/mi
Half· 13.11 mi
2:12:17
Rank: #25209 (+60)
20K → Half
6:33 | 9:36/mi
25K· 15.53 mi
2:37:56
Rank: #25059 (+150)
Half → 25K
25:39 | 10:35/mi
30K· 18.64 mi
3:10:22
Rank: #24677 (+382)
25K → 30K
32:26 | 10:26/mi
20M
3:24:32
Rank: #24545 (+132)
30K → 20M
14:10 | 10:25/mi
21M
3:35:34
Rank: #24373 (+172)
20M → 21M
11:02 | 11:02/mi
35K· 21.75 mi
3:43:07
Rank: #24298 (+75)
21M → 35K
7:33 | 10:06/mi
23M
3:55:52
Rank: #24131 (+167)
35K → 23M
12:45 | 10:11/mi
24M
4:06:02
Rank: #24048 (+83)
23M → 24M
10:10 | 10:10/mi
40K· 24.85 mi
4:14:37
Rank: #23939 (+109)
24M → 40K
8:35 | 10:02/mi
25.2M
4:18:13
Rank: #23871 (+68)
40K → 25.2M
3:36 | 10:26/mi
Finish· 26.22 mi
4:27:26
Rank: #23754 (+117)
25.2M → Finish
9:13 | 9:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:12:17
Pace10:05 /mi
2nd Half
Distance13.11 mi
Time2:15:09
Pace10:19 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:5430:089:4230:08
9:42
-
10K
6.21 mi12:26:071:01:219:5231:13
10:03
+0:21
15K
9.32 mi12:58:381:33:5210:0432:31
10:28
+0:25
20K
12.43 mi13:30:302:05:4410:0731:52
10:15
-0:13
Half
13.11 mi13:37:032:12:1710:056:33
9:36
-0:39
25K
15.53 mi14:02:422:37:5610:1025:39
10:35
+0:59
30K
18.64 mi14:35:083:10:2210:1332:26
10:26
-0:09
20M
20.00 mi14:49:183:24:3210:1414:10
10:25
-0:01
21M
21.00 mi15:00:203:35:3410:1611:02
11:02
+0:37
35K
21.75 mi15:07:533:43:0710:167:33
10:06
-0:56
23M
23.00 mi15:20:383:55:5210:1512:45
10:11
+0:05
24M
24.00 mi15:30:484:06:0210:1510:10
10:10
-0:01
40K
24.85 mi15:39:234:14:3710:158:35
10:02
-0:08
25.2M
25.20 mi15:42:594:18:1310:153:36
10:26
+0:24
Finish
26.22 mi15:52:124:27:2610:129:13
9:03
-1:23

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

9:03 /mi

Average Pace

10:12 /mi

Slowest Pace

11:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

45:54

17% of race

Time at Steady Pace

1:42:08

38% of race

Time at Slower Pace

1:59:24

45% of race

Average Pace: 10:12 /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 mi11:54:5430:089:4230:08
9:42
#24846
10K
6.21 mi12:26:071:01:219:5231:13
10:03
#25125
15K
9.32 mi12:58:381:33:5210:0432:31
10:28
#25467
20K
12.43 mi13:30:302:05:4410:0731:52
10:15
#25269
Half
13.11 mi13:37:032:12:1710:056:33
9:36
#25209
25K
15.53 mi14:02:422:37:5610:1025:39
10:35
#25059
30K
18.64 mi14:35:083:10:2210:1332:26
10:26
#24677
20M
20.00 mi14:49:183:24:3210:1414:10
10:25
#24545
21M
21.00 mi15:00:203:35:3410:1611:02
11:02
#24373
35K
21.75 mi15:07:533:43:0710:167:33
10:06
#24298
23M
23.00 mi15:20:383:55:5210:1512:45
10:11
#24131
24M
24.00 mi15:30:484:06:0210:1510:10
10:10
#24048
40K
24.85 mi15:39:234:14:3710:158:35
10:02
#23939
25.2M
25.20 mi15:42:594:18:1310:153:36
10:26
#23871
Finish
26.22 mi15:52:124:27:2610:129:13
9:03
#23754
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24846101311013125865(Top 91%)10715(Top 88%)10715(Top 196%)
10K6.21 mi3.10 mi25125-27910293-16210293-16225417(Top 89%)10470(Top 86%)10470(Top 191%)
15K9.32 mi3.11 mi25467-34210477-18410477-18425865(Top 91%)10715(Top 88%)10715(Top 196%)
20K12.43 mi3.11 mi25269+19810386+9110386+9124756(Top 87%)10130(Top 83%)10130(Top 185%)
Half13.11 mi0.68 mi25209+6010356+3010356+3023871(Top 84%)9632(Top 79%)9632(Top 176%)
25K15.53 mi2.42 mi25059+15010283+7310283+7324516(Top 86%)10027(Top 82%)10027(Top 183%)
30K18.64 mi3.11 mi24677+38210101+18210101+18222801(Top 80%)9215(Top 75%)9215(Top 168%)
20M20.00 mi1.36 mi24545+13210039+6210039+6222241(Top 78%)9030(Top 74%)9030(Top 165%)
21M21.00 mi1.00 mi24373+1729967+729967+7221516(Top 76%)8718(Top 71%)8718(Top 159%)
35K21.75 mi0.75 mi24298+759939+289939+2822183(Top 78%)9134(Top 75%)9134(Top 167%)
23M23.00 mi1.25 mi24131+1679865+749865+7421075(Top 74%)8601(Top 70%)8601(Top 157%)
24M24.00 mi1.00 mi24048+839839+269839+2621860(Top 77%)9072(Top 74%)9072(Top 166%)
40K24.85 mi0.85 mi23939+1099787+529787+5220600(Top 73%)8468(Top 69%)8468(Top 155%)
25.2M25.20 mi0.35 mi23871+689759+289759+2818878(Top 66%)7589(Top 62%)7589(Top 139%)
Finish26.22 mi1.02 mi23754+1179708+519708+5119294(Top 68%)7771(Top 64%)7771(Top 142%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21stories
+97ft-345ft

Overall

25865

Females

10715

F18-39

10715

5K→10K

3.1 - 6.2 mi

Top 89%
×5stories
+79ft-138ft

Overall

25417

Females

10470

F18-39

10470

10K→15K

6.2 - 9.3 mi

Top 91%
×3stories
+67ft-78ft

Overall

25865

Females

10715

F18-39

10715

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

24756

Females

10130

F18-39

10130

20K→Half

12.4 - 13.1 mi

Top 84%
×2stories
+19ft-37ft

Overall

23871

Females

9632

F18-39

9632

Half→25K

13.1 - 15.5 mi

Top 86%
×4stories
+66ft-88ft

Overall

24516

Females

10027

F18-39

10027

25K→30K

15.5 - 18.6 mi

Top 80%
×9stories
+181ft-148ft

Overall

22801

Females

9215

F18-39

9215

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

22241

Females

9030

F18-39

9030

20M→21M

20.0 - 21.0 mi

Top 76%
×8stories
+106ft-24ft

Overall

21516

Females

8718

F18-39

8718

21M→35K

21.0 - 21.8 mi

Top 78%
×7stories
+17ft-86ft

Overall

22183

Females

9134

F18-39

9134

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

21075

Females

8601

F18-39

8601

23M→24M

23.0 - 24.0 mi

Top 77%
×6stories
+12ft-82ft

Overall

21860

Females

9072

F18-39

9072

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

20600

Females

8468

F18-39

8468

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

18878

Females

7589

F18-39

7589

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

19294

Females

7771

F18-39

7771

Passing Analysis

Category:
Athletes Passed
1962
Passed By
870
Net Change
+1092
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24846
5K → 10K96375-279#24846#25125
10K → 15K45387-342#25125#25467
15K → 20K23537+198#25467#25269
20K → Half611+60#25269#25209
Half → 25K18030+150#25209#25059
25K → 30K3908+382#25059#24677
30K → 20M1331+132#24677#24545
20M → 21M1764+172#24545#24373
21M → 35K805+75#24373#24298
35K → 23M1714+167#24298#24131
23M → 24M929+83#24131#24048
24M → 40K1156+109#24048#23939
40K → 25.2M680+68#23939#23871
25.2M → Finish1203+117#23871#23754
TOTALS1962870+1092
📊

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