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BOSTON MARATHON 2025

Louisa Creighton-Smith

Bib: 18843•F

ME

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 42%
Gender (Female)
#0 / 12228
Top 26%
Division (F18-39)
#0 / 5469
Top 43%
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
7:30/mi
23:18
↑ 97↓ 3451.5%
10K· 6.21 mi
7:31/mi
46:40
↑ 79↓ 1380.4%
15K· 9.32 mi
7:30/mi
1:09:57
↑ 67↓ 78
20K· 12.43 mi
7:37/mi
1:33:36
↑ 106↓ 860.1%
Half· 13.11 mi
7:29/mi
1:38:42
↑ 19↓ 370.5%
25K· 15.53 mi
7:42/mi
1:57:21
↑ 66↓ 880.2%
30K· 18.64 mi
7:52/mi
2:21:47
↑ 181↓ 1480.2%
20M
8:05/mi
2:32:46
↑ 64↓ 500.2%
21M
8:49/mi
2:41:35
↑ 106↓ 241.6%
35K· 21.75 mi
8:05/mi
2:47:38
↑ 17↓ 861.7%
23M
9:06/mi
2:59:02
↑ 23↓ 630.6%
24M
7:50/mi
3:06:52
↓ 821.3%
40K· 24.85 mi
8:17/mi
3:13:57
↓ 200.3%
25.2M
8:59/mi
3:17:03
↑ 13↓ 160.2%
Finish· 26.22 mi
8:14/mi
3:25:26
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:42
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:46:44
Pace8:09 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:3523:187:3023:18
7:30
-
10K
6.21 mi11:36:5746:407:3123:22
7:31
+0:01
15K
9.32 mi12:00:141:09:577:3023:17
7:30
-0:01
20K
12.43 mi12:23:531:33:367:3223:39
7:37
+0:07
Half
13.11 mi12:28:591:38:427:325:06
7:29
-0:08
25K
15.53 mi12:47:381:57:217:3318:39
7:42
+0:13
30K
18.64 mi13:12:042:21:477:3624:26
7:52
+0:10
20M
20.00 mi13:23:032:32:467:3810:59
8:05
+0:13
21M
21.00 mi13:31:522:41:357:428:49
8:49
+0:44
35K
21.75 mi13:37:552:47:387:426:03
8:05
-0:44
23M
23.00 mi13:49:192:59:027:4711:24
9:06
+1:01
24M
24.00 mi13:57:093:06:527:477:50
7:50
-1:16
40K
24.85 mi14:04:143:13:577:487:05
8:17
+0:27
25.2M
25.20 mi14:07:203:17:037:493:06
8:59
+0:42
Finish
26.22 mi14:15:433:25:267:508:23
8:14
-0:45

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

7:29 /mi

Average Pace

7:50 /mi

Slowest Pace

9:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:15:03

37% of race

Time at Steady Pace

1:31:36

45% of race

Time at Slower Pace

38:47

19% of race

Average Pace: 7:50 /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 mi11:13:3523:187:3023:18
7:30
#12268
10K
6.21 mi11:36:5746:407:3123:22
7:31
#12231
15K
9.32 mi12:00:141:09:577:3023:17
7:30
#12028
20K
12.43 mi12:23:531:33:367:3223:39
7:37
#11917
Half
13.11 mi12:28:591:38:427:325:06
7:29
#11887
25K
15.53 mi12:47:381:57:217:3318:39
7:42
#11808
30K
18.64 mi13:12:042:21:477:3624:26
7:52
#11474
20M
20.00 mi13:23:032:32:467:3810:59
8:05
#11395
21M
21.00 mi13:31:522:41:357:428:49
8:49
#11418
35K
21.75 mi13:37:552:47:387:426:03
8:05
#11472
23M
23.00 mi13:49:192:59:027:4711:24
9:06
#11845
24M
24.00 mi13:57:093:06:527:477:50
7:50
#11746
40K
24.85 mi14:04:143:13:577:487:05
8:17
#11715
25.2M
25.20 mi14:07:203:17:037:493:06
8:59
#11717
Finish
26.22 mi14:15:433:25:267:508:23
8:14
#11811
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi122682944294411744(Top 41%)2765(Top 23%)2765(Top 51%)
10K6.21 mi3.10 mi12231+372929+152929+1512313(Top 43%)2985(Top 24%)2985(Top 55%)
15K9.32 mi3.11 mi12028+2032856+732856+7311744(Top 41%)2765(Top 23%)2765(Top 51%)
20K12.43 mi3.11 mi11917+1112831+252831+2511706(Top 41%)2844(Top 23%)2844(Top 52%)
Half13.11 mi0.68 mi11887+302818+132818+1311573(Top 41%)2732(Top 22%)2732(Top 50%)
25K15.53 mi2.42 mi11808+792821-32821-311504(Top 41%)2853(Top 23%)2853(Top 52%)
30K18.64 mi3.11 mi11474+3342718+1032718+10310399(Top 37%)2492(Top 20%)2492(Top 46%)
20M20.00 mi1.36 mi11395+792721-32721-311004(Top 39%)2945(Top 24%)2945(Top 54%)
21M21.00 mi1.00 mi11418-232773-522773-5212416(Top 44%)3809(Top 31%)3809(Top 70%)
35K21.75 mi0.75 mi11472-542826-532826-5312847(Top 45%)4066(Top 33%)4066(Top 74%)
23M23.00 mi1.25 mi11845-3733058-2323058-23216842(Top 59%)6349(Top 52%)6349(Top 116%)
24M24.00 mi1.00 mi11746+993047+113047+1110103(Top 36%)2867(Top 23%)2867(Top 52%)
40K24.85 mi0.85 mi11715+313056-93056-912074(Top 43%)3947(Top 32%)3947(Top 72%)
25.2M25.20 mi0.35 mi11717-23072-163072-1611786(Top 41%)3862(Top 32%)3862(Top 71%)
Finish26.22 mi1.02 mi11811-943162-903162-9014447(Top 51%)5170(Top 42%)5170(Top 95%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

11744

Females

2765

F18-39

2765

5K→10K

3.1 - 6.2 mi

Top 43%
×5story building
+79ft-138ft

Overall

12313

Females

2985

F18-39

2985

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

11744

Females

2765

F18-39

2765

15K→20K

9.3 - 12.4 mi

Top 41%
×5story building
+106ft-86ft

Overall

11706

Females

2844

F18-39

2844

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

11573

Females

2732

F18-39

2732

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

11504

Females

2853

F18-39

2853

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

10399

Females

2492

F18-39

2492

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

11004

Females

2945

F18-39

2945

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

12416

Females

3809

F18-39

3809

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

12847

Females

4066

F18-39

4066

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

16842

Females

6349

F18-39

6349

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

10103

Females

2867

F18-39

2867

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

12074

Females

3947

F18-39

3947

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11786

Females

3862

F18-39

3862

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

14447

Females

5170

F18-39

5170

Passing Analysis

Category:
Athletes Passed
2098
Passed By
1641
Net Change
+457
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12268
5K → 10K269232+37#12268#12231
10K → 15K30198+203#12231#12028
15K → 20K246135+111#12028#11917
20K → Half5020+30#11917#11887
Half → 25K196117+79#11887#11808
25K → 30K40066+334#11808#11474
30K → 20M15778+79#11474#11395
20M → 21M78101-23#11395#11418
21M → 35K50104-54#11418#11472
35K → 23M45418-373#11472#11845
23M → 24M12223+99#11845#11746
24M → 40K9463+31#11746#11715
40K → 25.2M3234-2#11715#11717
25.2M → Finish58152-94#11717#11811
TOTALS20981641+457
📊

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