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BOSTON MARATHON 2025

Imogen Campbell-Black

Bib: 15558•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 36%
Gender (Female)
#0 / 12228
Top 19%
Division (F18-39)
#0 / 5469
Top 33%
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
7:19/mi
22:44
↑ 97↓ 3451.5%
10K· 6.21 mi
7:20/mi
45:32
↑ 79↓ 1380.4%
15K· 9.32 mi
7:22/mi
1:08:25
↑ 67↓ 78
20K· 12.43 mi
7:24/mi
1:31:25
↑ 106↓ 860.1%
Half· 13.11 mi
7:09/mi
1:36:18
↑ 19↓ 370.5%
25K· 15.53 mi
7:27/mi
1:54:23
↑ 66↓ 880.2%
30K· 18.64 mi
7:50/mi
2:18:42
↑ 181↓ 1480.2%
20M
7:59/mi
2:29:33
↑ 64↓ 500.2%
21M
8:29/mi
2:38:02
↑ 106↓ 241.6%
35K· 21.75 mi
7:28/mi
2:43:37
↑ 17↓ 861.7%
23M
7:59/mi
2:53:37
↑ 23↓ 630.6%
24M
7:53/mi
3:01:30
↓ 821.3%
40K· 24.85 mi
8:15/mi
3:08:33
↓ 200.3%
25.2M
8:59/mi
3:11:39
↑ 13↓ 160.2%
Finish· 26.22 mi
8:06/mi
3:19:54
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:18
Pace7:21 /mi
2nd Half
Distance13.11 mi
Time1:43:36
Pace7:54 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:0122:447:1922:44
7:19
-
10K
6.21 mi11:16:4945:327:2022:48
7:20
+0:01
15K
9.32 mi11:39:421:08:257:2022:53
7:22
+0:02
20K
12.43 mi12:02:421:31:257:2123:00
7:24
+0:02
Half
13.11 mi12:07:351:36:187:214:53
7:09
-0:15
25K
15.53 mi12:25:401:54:237:2218:05
7:27
+0:18
30K
18.64 mi12:49:592:18:427:2624:19
7:50
+0:23
20M
20.00 mi13:00:502:29:337:2910:51
7:59
+0:09
21M
21.00 mi13:09:192:38:027:328:29
8:29
+0:30
35K
21.75 mi13:14:542:43:377:315:35
7:28
-1:01
23M
23.00 mi13:24:542:53:377:3310:00
7:59
+0:31
24M
24.00 mi13:32:473:01:307:347:53
7:53
-0:06
40K
24.85 mi13:39:503:08:337:357:03
8:15
+0:22
25.2M
25.20 mi13:42:563:11:397:363:06
8:59
+0:44
Finish
26.22 mi13:51:113:19:547:388:15
8:06
-0:53

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

7:09 /mi

Average Pace

7:38 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:58

60% of race

Time at Steady Pace

53:03

27% of race

Time at Slower Pace

26:53

13% of race

Average Pace: 7:37 /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 mi10:54:0122:447:1922:44
7:19
#10553
10K
6.21 mi11:16:4945:327:2022:48
7:20
#10580
15K
9.32 mi11:39:421:08:257:2022:53
7:22
#10574
20K
12.43 mi12:02:421:31:257:2123:00
7:24
#10365
Half
13.11 mi12:07:351:36:187:214:53
7:09
#10267
25K
15.53 mi12:25:401:54:237:2218:05
7:27
#10125
30K
18.64 mi12:49:592:18:427:2624:19
7:50
#10061
20M
20.00 mi13:00:502:29:337:2910:51
7:59
#10037
21M
21.00 mi13:09:192:38:027:328:29
8:29
#10048
35K
21.75 mi13:14:542:43:377:315:35
7:28
#9937
23M
23.00 mi13:24:542:53:377:3310:00
7:59
#9931
24M
24.00 mi13:32:473:01:307:347:53
7:53
#9905
40K
24.85 mi13:39:503:08:337:357:03
8:15
#9963
25.2M
25.20 mi13:42:563:11:397:363:06
8:59
#9972
Finish
26.22 mi13:51:113:19:547:388:15
8:06
#10117
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi105532061206110557(Top 37%)2147(Top 18%)2147(Top 39%)
10K6.21 mi3.10 mi10580-272095-342095-3410663(Top 38%)2140(Top 18%)2140(Top 39%)
15K9.32 mi3.11 mi10574+62110-152110-1510557(Top 37%)2147(Top 18%)2147(Top 39%)
20K12.43 mi3.11 mi10365+2092038+722038+729948(Top 35%)1937(Top 16%)1937(Top 35%)
Half13.11 mi0.68 mi10267+981999+391999+398829(Top 31%)1441(Top 12%)1441(Top 26%)
25K15.53 mi2.42 mi10125+1421970+291970+299639(Top 34%)1952(Top 16%)1952(Top 36%)
30K18.64 mi3.11 mi10061+641983-131983-1310141(Top 36%)2350(Top 19%)2350(Top 43%)
20M20.00 mi1.36 mi10037+242006-232006-2310359(Top 36%)2610(Top 21%)2610(Top 48%)
21M21.00 mi1.00 mi10048-112057-512057-5110356(Top 36%)2786(Top 23%)2786(Top 51%)
35K21.75 mi0.75 mi9937+1112031+262031+268423(Top 30%)1864(Top 15%)1864(Top 34%)
23M23.00 mi1.25 mi9931+62076-452076-459941(Top 35%)2708(Top 22%)2708(Top 50%)
24M24.00 mi1.00 mi9905+262094-182094-1810452(Top 37%)3018(Top 25%)3018(Top 55%)
40K24.85 mi0.85 mi9963-582158-642158-6411838(Top 42%)3825(Top 31%)3825(Top 70%)
25.2M25.20 mi0.35 mi9972-92175-172175-1711767(Top 41%)3843(Top 31%)3843(Top 70%)
Finish26.22 mi1.02 mi10117-1452280-1052280-10513563(Top 48%)4721(Top 39%)4721(Top 86%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

10557

Females

2147

F18-39

2147

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10663

Females

2140

F18-39

2140

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

10557

Females

2147

F18-39

2147

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

9948

Females

1937

F18-39

1937

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8829

Females

1441

F18-39

1441

Half→25K

13.1 - 15.5 mi

Top 34%
×4story building
+66ft-88ft

Overall

9639

Females

1952

F18-39

1952

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

10141

Females

2350

F18-39

2350

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

10359

Females

2610

F18-39

2610

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

10356

Females

2786

F18-39

2786

21M→35K

21.0 - 21.8 mi

Top 30%
×7story building
+17ft-86ft

Overall

8423

Females

1864

F18-39

1864

35K→23M

21.8 - 23.0 mi

Top 35%
×5story building
+23ft-63ft

Overall

9941

Females

2708

F18-39

2708

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

10452

Females

3018

F18-39

3018

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11838

Females

3825

F18-39

3825

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11767

Females

3843

F18-39

3843

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

13563

Females

4721

F18-39

4721

Passing Analysis

Category:
Athletes Passed
1969
Passed By
1526
Net Change
+436
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10553
5K → 10K248275-27#10553#10580
10K → 15K170164+6#10580#10574
15K → 20K27970+209#10574#10365
20K → Half1024+98#10365#10267
Half → 25K22179+142#10267#10125
25K → 30K254189+64#10125#10061
30K → 20M134109+24#10061#10037
20M → 21M105115-11#10037#10048
21M → 35K12817+111#10048#9937
35K → 23M10295+6#9937#9931
23M → 24M9468+26#9931#9905
24M → 40K59116-58#9905#9963
40K → 25.2M3645-9#9963#9972
25.2M → Finish37180-145#9972#10117
TOTALS19691526+436
📊

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