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BOSTON MARATHON 2025

Holli Clark

Bib: 17933•F

NC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 45%
Gender (Female)
#0 / 12228
Top 30%
Masters (Masters Women)
#0 / 6759
Top 15%
Division (F50-54)
#0 / 1303
Top 8%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:25/mi
23:04
↑ 97↓ 3451.5%
10K· 6.21 mi
7:23/mi
46:00
↑ 79↓ 1380.4%
15K· 9.32 mi
7:28/mi
1:09:11
↑ 67↓ 78
20K· 12.43 mi
7:40/mi
1:33:00
↑ 106↓ 860.1%
Half· 13.11 mi
7:39/mi
1:38:13
↑ 19↓ 370.5%
25K· 15.53 mi
7:48/mi
1:57:08
↑ 66↓ 880.2%
30K· 18.64 mi
8:13/mi
2:22:39
↑ 181↓ 1480.2%
20M
8:26/mi
2:34:07
↑ 64↓ 500.2%
21M
8:58/mi
2:43:05
↑ 106↓ 241.6%
35K· 21.75 mi
8:19/mi
2:49:18
↑ 17↓ 861.7%
23M
8:38/mi
3:00:06
↑ 23↓ 630.6%
24M
8:33/mi
3:08:39
↓ 821.3%
40K· 24.85 mi
8:49/mi
3:16:11
↓ 200.3%
25.2M
9:49/mi
3:19:34
↑ 13↓ 160.2%
Finish· 26.22 mi
8:46/mi
3:28:30
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:13
Pace7:30 /mi
2nd Half
Distance13.11 mi
Time1:50:17
Pace8:25 /mi
📊Positive Split: 12.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:3223:047:2523:04
7:25
-
10K
6.21 mi11:36:2846:007:2422:56
7:23
-0:02
15K
9.32 mi11:59:391:09:117:2523:11
7:28
+0:05
20K
12.43 mi12:23:281:33:007:2923:49
7:40
+0:12
Half
13.11 mi12:28:411:38:137:305:13
7:39
-0:01
25K
15.53 mi12:47:361:57:087:3218:55
7:48
+0:09
30K
18.64 mi13:13:072:22:397:3925:31
8:13
+0:25
20M
20.00 mi13:24:352:34:077:4211:28
8:26
+0:13
21M
21.00 mi13:33:332:43:057:468:58
8:58
+0:32
35K
21.75 mi13:39:462:49:187:476:13
8:19
-0:39
23M
23.00 mi13:50:343:00:067:5010:48
8:38
+0:19
24M
24.00 mi13:59:073:08:397:528:33
8:33
-0:05
40K
24.85 mi14:06:393:16:117:547:32
8:49
+0:16
25.2M
25.20 mi14:10:023:19:347:553:23
9:49
+1:00
Finish
26.22 mi14:18:583:28:307:578:56
8:46
-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

7:23 /mi

Average Pace

7:57 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:08

56% of race

Time at Steady Pace

1:02:33

30% of race

Time at Slower Pace

28:49

14% of race

Average Pace: 7:57 /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 mi11:13:3223:047:2523:04
7:25
#11592
10K
6.21 mi11:36:2846:007:2422:56
7:23
#11267
15K
9.32 mi11:59:391:09:117:2523:11
7:28
#11281
20K
12.43 mi12:23:281:33:007:2923:49
7:40
#11503
Half
13.11 mi12:28:411:38:137:305:13
7:39
#11567
25K
15.53 mi12:47:361:57:087:3218:55
7:48
#11680
30K
18.64 mi13:13:072:22:397:3925:31
8:13
#11833
20M
20.00 mi13:24:352:34:077:4211:28
8:26
#11965
21M
21.00 mi13:33:332:43:057:468:58
8:58
#12023
35K
21.75 mi13:39:462:49:187:476:13
8:19
#12108
23M
23.00 mi13:50:343:00:067:5010:48
8:38
#12215
24M
24.00 mi13:59:073:08:397:528:33
8:33
#12335
40K
24.85 mi14:06:393:16:117:547:32
8:49
#12429
25.2M
25.20 mi14:10:023:19:347:553:23
9:49
#12501
Finish
26.22 mi14:18:583:28:307:578:56
8:46
#12744
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi115922575257511464(Top 40%)2618(Top 21%)2618(Top 201%)
10K6.21 mi3.10 mi11267+3252436+1392436+13911043(Top 39%)2330(Top 19%)2330(Top 179%)
15K9.32 mi3.11 mi11281-142467-312467-3111464(Top 40%)2618(Top 21%)2618(Top 201%)
20K12.43 mi3.11 mi11503-2222614-1472614-14712122(Top 43%)3064(Top 25%)3064(Top 235%)
Half13.11 mi0.68 mi11567-642645-312645-3113030(Top 46%)3516(Top 29%)3516(Top 270%)
25K15.53 mi2.42 mi11680-1132749-1042749-10412400(Top 44%)3340(Top 27%)3340(Top 256%)
30K18.64 mi3.11 mi11833-1532915-1662915-16612934(Top 46%)3793(Top 31%)3793(Top 291%)
20M20.00 mi1.36 mi11965-1323014-993014-9913404(Top 47%)4190(Top 34%)4190(Top 322%)
21M21.00 mi1.00 mi12023-583081-673081-6713318(Top 47%)4271(Top 35%)4271(Top 328%)
35K21.75 mi0.75 mi12108-853160-793160-7914309(Top 50%)4840(Top 40%)4840(Top 371%)
23M23.00 mi1.25 mi12215-1073250-903250-9014095(Top 50%)4839(Top 40%)4839(Top 371%)
24M24.00 mi1.00 mi12335-1203343-933343-9314821(Top 52%)5276(Top 43%)5276(Top 405%)
40K24.85 mi0.85 mi12429-943421-783421-7815253(Top 54%)5655(Top 46%)5655(Top 434%)
25.2M25.20 mi0.35 mi12501-723474-533474-5316155(Top 57%)6140(Top 50%)6140(Top 471%)
Finish26.22 mi1.02 mi12744-2433626-1523626-15217873(Top 63%)7008(Top 57%)7008(Top 538%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

11464

Females

2618

F50-54

2618

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

11043

Females

2330

F50-54

2330

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

11464

Females

2618

F50-54

2618

15K→20K

9.3 - 12.4 mi

Top 43%
×5story building
+106ft-86ft

Overall

12122

Females

3064

F50-54

3064

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

13030

Females

3516

F50-54

3516

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

12400

Females

3340

F50-54

3340

25K→30K

15.5 - 18.6 mi

Top 46%
×9story building
+181ft-148ft

Overall

12934

Females

3793

F50-54

3793

30K→20M

18.6 - 20.0 mi

Top 47%
×5story building
+64ft-50ft

Overall

13404

Females

4190

F50-54

4190

20M→21M

20.0 - 21.0 mi

Top 47%
×8story building
+106ft-24ft

Overall

13318

Females

4271

F50-54

4271

21M→35K

21.0 - 21.8 mi

Top 50%
×7story building
+17ft-86ft

Overall

14309

Females

4840

F50-54

4840

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

14095

Females

4839

F50-54

4839

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

14821

Females

5276

F50-54

5276

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15253

Females

5655

F50-54

5655

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16155

Females

6140

F50-54

6140

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2story building
+22ft-21ft

Overall

17873

Females

7008

F50-54

7008

Passing Analysis

Category:
Athletes Passed
1494
Passed By
2646
Net Change
-1152
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11592
5K → 10K446121+325#11592#11267
10K → 15K186200-14#11267#11281
15K → 20K118340-222#11281#11503
20K → Half1276-64#11503#11567
Half → 25K130243-113#11567#11680
25K → 30K189342-153#11680#11833
30K → 20M77209-132#11833#11965
20M → 21M85143-58#11965#12023
21M → 35K42127-85#12023#12108
35K → 23M79186-107#12108#12215
23M → 24M49169-120#12215#12335
24M → 40K46140-94#12335#12429
40K → 25.2M1284-72#12429#12501
25.2M → Finish23266-243#12501#12744
TOTALS14942646-1152
📊

Passing Visuals

Category:
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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