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BOSTON MARATHON 2025

Trenna Kelly

Bib: 27052•F

MD

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
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
9:51/mi
30:37
↑ 97↓ 3451.5%
10K· 6.21 mi
10:17/mi
1:02:35
↑ 79↓ 1380.4%
15K· 9.32 mi
11:50/mi
1:39:21
↑ 67↓ 78
20K· 12.43 mi
12:37/mi
2:18:34
↑ 106↓ 860.1%
Half· 13.11 mi
12:28/mi
2:27:04
↑ 19↓ 370.5%
25K· 15.53 mi
13:51/mi
3:00:40
↑ 66↓ 880.2%
30K· 18.64 mi
14:07/mi
3:44:31
↑ 181↓ 1480.2%
20M
14:44/mi
4:04:32
↑ 64↓ 500.2%
21M
15:13/mi
4:19:45
↑ 106↓ 241.6%
35K· 21.75 mi
13:26/mi
4:29:48
↑ 17↓ 861.7%
23M
13:31/mi
4:46:43
↑ 23↓ 630.6%
24M
12:53/mi
4:59:36
↓ 821.3%
40K· 24.85 mi
13:54/mi
5:11:29
↓ 200.3%
25.2M
16:35/mi
5:17:12
↑ 13↓ 160.2%
Finish· 26.22 mi
12:30/mi
5:29:56
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:27:04
Pace11:13 /mi
2nd Half
Distance13.11 mi
Time3:02:52
Pace13:57 /mi
📊Positive Split: 24.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:2830:379:5130:37
9:51
-
10K
6.21 mi12:19:261:02:3510:0431:58
10:17
+0:26
15K
9.32 mi12:56:121:39:2110:4036:46
11:50
+1:33
20K
12.43 mi13:35:252:18:3411:0939:13
12:37
+0:47
Half
13.11 mi13:43:552:27:0411:138:30
12:28
-0:09
25K
15.53 mi14:17:313:00:4011:3833:36
13:51
+1:23
30K
18.64 mi15:01:223:44:3112:0343:51
14:07
+0:16
20M
20.00 mi15:21:234:04:3212:1420:01
14:44
+0:37
21M
21.00 mi15:36:364:19:4512:2215:13
15:13
+0:29
35K
21.75 mi15:46:394:29:4812:2410:03
13:26
-1:47
23M
23.00 mi16:03:344:46:4312:2816:55
13:31
+0:05
24M
24.00 mi16:16:274:59:3612:2912:53
12:53
-0:38
40K
24.85 mi16:28:205:11:2912:3211:53
13:54
+1:01
25.2M
25.20 mi16:34:035:17:1212:355:43
16:35
+2:41
Finish
26.22 mi16:46:475:29:5612:3612:44
12:30
-4:05

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

9:51 /mi

Average Pace

12:36 /mi

Slowest Pace

16:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:35

37% of race

Time at Steady Pace

2:48:24

51% of race

Time at Slower Pace

40:57

12% of race

Average Pace: 12:35 /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 mi11:47:2830:379:5130:37
9:51
#25216
10K
6.21 mi12:19:261:02:3510:0431:58
10:17
#25592
15K
9.32 mi12:56:121:39:2110:4036:46
11:50
#26564
20K
12.43 mi13:35:252:18:3411:0939:13
12:37
#26989
Half
13.11 mi13:43:552:27:0411:138:30
12:28
#27043
25K
15.53 mi14:17:313:00:4011:3833:36
13:51
#27236
30K
18.64 mi15:01:223:44:3112:0343:51
14:07
#27327
20M
20.00 mi15:21:234:04:3212:1420:01
14:44
#27392
21M
21.00 mi15:36:364:19:4512:2215:13
15:13
#27404
35K
21.75 mi15:46:394:29:4812:2410:03
13:26
#27410
23M
23.00 mi16:03:344:46:4312:2816:55
13:31
#27405
24M
24.00 mi16:16:274:59:3612:2912:53
12:53
#27386
40K
24.85 mi16:28:205:11:2912:3211:53
13:54
#27388
25.2M
25.20 mi16:34:035:17:1212:355:43
16:35
#27409
Finish
26.22 mi16:46:475:29:5612:3612:44
12:30
#27423
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi25216103251032527513(Top 97%)11691(Top 96%)11691(Top 897%)
10K6.21 mi3.10 mi25592-37610552-22710552-22725894(Top 91%)10732(Top 88%)10732(Top 824%)
15K9.32 mi3.11 mi26564-97211095-54311095-54327513(Top 97%)11691(Top 96%)11691(Top 897%)
20K12.43 mi3.11 mi26989-42511360-26511360-26527597(Top 97%)11755(Top 96%)11755(Top 902%)
Half13.11 mi0.68 mi27043-5411400-4011400-4027733(Top 98%)11844(Top 97%)11844(Top 909%)
25K15.53 mi2.42 mi27236-19311521-12111521-12127816(Top 98%)11898(Top 97%)11898(Top 913%)
30K18.64 mi3.11 mi27327-9111602-8111602-8127581(Top 97%)11823(Top 97%)11823(Top 907%)
20M20.00 mi1.36 mi27392-6511645-4311645-4327752(Top 98%)11945(Top 98%)11945(Top 917%)
21M21.00 mi1.00 mi27404-1211652-711652-727329(Top 96%)11740(Top 96%)11740(Top 901%)
35K21.75 mi0.75 mi27410-611659-711659-727314(Top 96%)11749(Top 96%)11749(Top 902%)
23M23.00 mi1.25 mi27405+511662-311662-326887(Top 95%)11546(Top 94%)11546(Top 886%)
24M24.00 mi1.00 mi27386+1911658+411658+426713(Top 94%)11488(Top 94%)11488(Top 882%)
40K24.85 mi0.85 mi27388-211666-811666-827090(Top 95%)11692(Top 96%)11692(Top 897%)
25.2M25.20 mi0.35 mi27409-2111677-1111677-1127936(Top 98%)12084(Top 99%)12084(Top 927%)
Finish26.22 mi1.02 mi27423-1411688-1111688-1127280(Top 96%)11760(Top 96%)11760(Top 903%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21story building
+97ft-345ft

Overall

27513

Females

11691

F50-54

11691

5K→10K

3.1 - 6.2 mi

Top 91%
×5story building
+79ft-138ft

Overall

25894

Females

10732

F50-54

10732

10K→15K

6.2 - 9.3 mi

Top 97%
×3story building
+67ft-78ft

Overall

27513

Females

11691

F50-54

11691

15K→20K

9.3 - 12.4 mi

Top 97%
×5story building
+106ft-86ft

Overall

27597

Females

11755

F50-54

11755

20K→Half

12.4 - 13.1 mi

Top 98%
×2story building
+19ft-37ft

Overall

27733

Females

11844

F50-54

11844

Half→25K

13.1 - 15.5 mi

Top 98%
×4story building
+66ft-88ft

Overall

27816

Females

11898

F50-54

11898

25K→30K

15.5 - 18.6 mi

Top 97%
×9story building
+181ft-148ft

Overall

27581

Females

11823

F50-54

11823

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

27752

Females

11945

F50-54

11945

20M→21M

20.0 - 21.0 mi

Top 96%
×8story building
+106ft-24ft

Overall

27329

Females

11740

F50-54

11740

21M→35K

21.0 - 21.8 mi

Top 96%
×7story building
+17ft-86ft

Overall

27314

Females

11749

F50-54

11749

35K→23M

21.8 - 23.0 mi

Top 95%
×5story building
+23ft-63ft

Overall

26887

Females

11546

F50-54

11546

23M→24M

23.0 - 24.0 mi

Top 94%
×6story building
+12ft-82ft

Overall

26713

Females

11488

F50-54

11488

24M→40K

24.0 - 24.9 mi

Top 95%
×1story
+6ft-20ft

Overall

27090

Females

11692

F50-54

11692

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

27936

Females

12084

F50-54

12084

25.2M→Finish

25.2 - 26.2 mi

Top 96%
×2story building
+22ft-21ft

Overall

27280

Females

11760

F50-54

11760

Passing Analysis

Category:
Athletes Passed
315
Passed By
2522
Net Change
-2207
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25216
5K → 10K78454-376#25216#25592
10K → 15K6978-972#25592#26564
15K → 20K20445-425#26564#26989
20K → Half559-54#26989#27043
Half → 25K26219-193#27043#27236
25K → 30K50141-91#27236#27327
30K → 20M1277-65#27327#27392
20M → 21M1628-12#27392#27404
21M → 35K1016-6#27404#27410
35K → 23M2419+5#27410#27405
23M → 24M3112+19#27405#27386
24M → 40K2123-2#27386#27388
40K → 25.2M324-21#27388#27409
25.2M → Finish1327-14#27409#27423
TOTALS3152522-2207
📊

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