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BOSTON MARATHON 2025

Sierra Morris

Bib: 10568•F

AL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 20%
Gender (Female)
#0 / 12228
Top 5%
Division (F18-39)
#0 / 5469
Top 10%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:03
Rank: #6135
Start → 5K
21:03 | 6:47/mi
10K· 6.21 mi
42:20
Rank: #6437 (-302)
5K → 10K
21:17 | 6:51/mi
15K· 9.32 mi
1:03:30
Rank: #6329 (+108)
10K → 15K
21:10 | 6:49/mi
20K· 12.43 mi
1:25:03
Rank: #6350 (-21)
15K → 20K
21:33 | 6:56/mi
Half· 13.11 mi
1:29:44
Rank: #6373 (-23)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:46:40
Rank: #6313 (+60)
Half → 25K
16:56 | 6:59/mi
30K· 18.64 mi
2:09:26
Rank: #6286 (+27)
25K → 30K
22:46 | 7:20/mi
20M
2:19:32
Rank: #6232 (+54)
30K → 20M
10:06 | 7:26/mi
21M
2:27:23
Rank: #6202 (+30)
20M → 21M
7:51 | 7:51/mi
35K· 21.75 mi
2:32:55
Rank: #6220 (-18)
21M → 35K
5:32 | 7:24/mi
23M
2:41:59
Rank: #6065 (+155)
35K → 23M
9:04 | 7:14/mi
24M
2:49:04
Rank: #5981 (+84)
23M → 24M
7:05 | 7:05/mi
40K· 24.85 mi
2:55:09
Rank: #5876 (+105)
24M → 40K
6:05 | 7:07/mi
25.2M
2:57:54
Rank: #5839 (+37)
40K → 25.2M
2:45 | 7:58/mi
Finish· 26.22 mi
3:05:09
Rank: #5786 (+53)
25.2M → Finish
7:15 | 7:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:44
Pace6:51 /mi
2nd Half
Distance13.11 mi
Time1:35:25
Pace7:17 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:2821:036:4721:03
6:47
-
10K
6.21 mi11:13:4542:206:4921:17
6:51
+0:04
15K
9.32 mi11:34:551:03:306:4921:10
6:49
-0:02
20K
12.43 mi11:56:281:25:036:5121:33
6:56
+0:07
Half
13.11 mi12:01:091:29:446:514:41
6:52
-0:04
25K
15.53 mi12:18:051:46:406:5216:56
6:59
+0:07
30K
18.64 mi12:40:512:09:266:5722:46
7:20
+0:21
20M
20.00 mi12:50:572:19:326:5910:06
7:26
+0:06
21M
21.00 mi12:58:482:27:237:017:51
7:51
+0:25
35K
21.75 mi13:04:202:32:557:025:32
7:24
-0:27
23M
23.00 mi13:13:242:41:597:039:04
7:14
-0:10
24M
24.00 mi13:20:292:49:047:037:05
7:05
-0:09
40K
24.85 mi13:26:342:55:097:036:05
7:07
+0:02
25.2M
25.20 mi13:29:192:57:547:042:45
7:58
+0:51
Finish
26.22 mi13:36:343:05:097:047:15
7:07
-0:51

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

6:47 /mi

Average Pace

7:04 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:54:33

94% of race

Time at Steady Pace

10:36

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:04 /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 mi10:52:2821:036:4721:03
6:47
#6135
10K
6.21 mi11:13:4542:206:4921:17
6:51
#6437
15K
9.32 mi11:34:551:03:306:4921:10
6:49
#6329
20K
12.43 mi11:56:281:25:036:5121:33
6:56
#6350
Half
13.11 mi12:01:091:29:446:514:41
6:52
#6373
25K
15.53 mi12:18:051:46:406:5216:56
6:59
#6313
30K
18.64 mi12:40:512:09:266:5722:46
7:20
#6286
20M
20.00 mi12:50:572:19:326:5910:06
7:26
#6232
21M
21.00 mi12:58:482:27:237:017:51
7:51
#6202
35K
21.75 mi13:04:202:32:557:025:32
7:24
#6220
23M
23.00 mi13:13:242:41:597:039:04
7:14
#6065
24M
24.00 mi13:20:292:49:047:037:05
7:05
#5981
40K
24.85 mi13:26:342:55:097:036:05
7:07
#5876
25.2M
25.20 mi13:29:192:57:547:042:45
7:58
#5839
Finish
26.22 mi13:36:343:05:097:047:15
7:07
#5786
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi61354984986226(Top 22%)572(Top 5%)572(Top 10%)
10K6.21 mi3.10 mi6437-302557-59557-596882(Top 24%)680(Top 6%)680(Top 12%)
15K9.32 mi3.11 mi6329+108546+11546+116226(Top 22%)572(Top 5%)572(Top 10%)
20K12.43 mi3.11 mi6350-21576-30576-306490(Top 23%)659(Top 5%)659(Top 12%)
Half13.11 mi0.68 mi6373-23586-10586-106724(Top 24%)702(Top 6%)702(Top 13%)
25K15.53 mi2.42 mi6313+605865866248(Top 22%)655(Top 5%)655(Top 12%)
30K18.64 mi3.11 mi6286+27611-25611-256620(Top 23%)877(Top 7%)877(Top 16%)
20M20.00 mi1.36 mi6232+54613-2613-26591(Top 23%)999(Top 8%)999(Top 18%)
21M21.00 mi1.00 mi6202+30624-11624-116507(Top 23%)1098(Top 9%)1098(Top 20%)
35K21.75 mi0.75 mi6220-18637-13637-137911(Top 28%)1628(Top 13%)1628(Top 30%)
23M23.00 mi1.25 mi6065+155620+17620+175149(Top 18%)713(Top 6%)713(Top 13%)
24M24.00 mi1.00 mi5981+846206205146(Top 18%)774(Top 6%)774(Top 14%)
40K24.85 mi0.85 mi5876+105611+9611+94603(Top 16%)667(Top 5%)667(Top 12%)
25.2M25.20 mi0.35 mi5839+37608+3608+35844(Top 21%)1170(Top 10%)1170(Top 21%)
Finish26.22 mi1.02 mi5786+53617-9617-96483(Top 23%)1426(Top 12%)1426(Top 26%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

6226

Females

572

F18-39

572

5K→10K

3.1 - 6.2 mi

Top 24%
×5stories
+79ft-138ft

Overall

6882

Females

680

F18-39

680

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

6226

Females

572

F18-39

572

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

6490

Females

659

F18-39

659

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6724

Females

702

F18-39

702

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

6248

Females

655

F18-39

655

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

6620

Females

877

F18-39

877

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6591

Females

999

F18-39

999

20M→21M

20.0 - 21.0 mi

Top 23%
×8stories
+106ft-24ft

Overall

6507

Females

1098

F18-39

1098

21M→35K

21.0 - 21.8 mi

Top 28%
×7stories
+17ft-86ft

Overall

7911

Females

1628

F18-39

1628

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

5149

Females

713

F18-39

713

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

5146

Females

774

F18-39

774

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4603

Females

667

F18-39

667

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5844

Females

1170

F18-39

1170

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2stories
+22ft-21ft

Overall

6483

Females

1426

F18-39

1426

Passing Analysis

Category:
Athletes Passed
1519
Passed By
1170
Net Change
+349
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6135
5K → 10K88390-302#6135#6437
10K → 15K20193+108#6437#6329
15K → 20K136157-21#6329#6350
20K → Half2043-23#6350#6373
Half → 25K14585+60#6373#6313
25K → 30K191164+27#6313#6286
30K → 20M10753+54#6286#6232
20M → 21M8050+30#6232#6202
21M → 35K3553-18#6202#6220
35K → 23M16712+155#6220#6065
23M → 24M10420+84#6065#5981
24M → 40K11712+105#5981#5876
40K → 25.2M458+37#5876#5839
25.2M → Finish8330+53#5839#5786
TOTALS15191170+349
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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