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BOSTON MARATHON 2025

Debbie Mckenzie

Bib: 24731•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
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
9:41/mi
30:06
↑ 97↓ 3451.5%
10K· 6.21 mi
9:40/mi
1:00:08
↑ 79↓ 1380.4%
15K· 9.32 mi
9:55/mi
1:30:57
↑ 67↓ 78
20K· 12.43 mi
9:54/mi
2:01:44
↑ 106↓ 860.1%
Half· 13.11 mi
9:49/mi
2:08:26
↑ 19↓ 370.5%
25K· 15.53 mi
10:22/mi
2:33:34
↑ 66↓ 880.2%
30K· 18.64 mi
10:35/mi
3:06:27
↑ 181↓ 1480.2%
20M
10:51/mi
3:21:12
↑ 64↓ 500.2%
21M
11:30/mi
3:32:42
↑ 106↓ 241.6%
35K· 21.75 mi
10:28/mi
3:40:32
↑ 17↓ 861.7%
23M
10:46/mi
3:54:01
↑ 23↓ 630.6%
24M
10:40/mi
4:04:41
↓ 821.3%
40K· 24.85 mi
10:33/mi
4:13:42
↓ 200.3%
25.2M
11:21/mi
4:17:37
↑ 13↓ 160.2%
Finish· 26.22 mi
10:03/mi
4:27:51
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:26
Pace9:48 /mi
2nd Half
Distance13.11 mi
Time2:19:25
Pace10:38 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:31:0130:069:4130:06
9:41
-
10K
6.21 mi12:01:031:00:089:4130:02
9:40
-0:01
15K
9.32 mi12:31:521:30:579:4530:49
9:55
+0:15
20K
12.43 mi13:02:392:01:449:4830:47
9:54
-0:01
Half
13.11 mi13:09:212:08:269:486:42
9:49
-0:05
25K
15.53 mi13:34:292:33:349:5325:08
10:22
+0:33
30K
18.64 mi14:07:223:06:2710:0032:53
10:35
+0:13
20M
20.00 mi14:22:073:21:1210:0414:45
10:51
+0:16
21M
21.00 mi14:33:373:32:4210:0811:30
11:30
+0:39
35K
21.75 mi14:41:273:40:3210:087:50
10:28
-1:02
23M
23.00 mi14:54:563:54:0110:1013:29
10:46
+0:18
24M
24.00 mi15:05:364:04:4110:1210:40
10:40
-0:06
40K
24.85 mi15:14:374:13:4210:129:01
10:33
-0:07
25.2M
25.20 mi15:18:324:17:3710:133:55
11:21
+0:48
Finish
26.22 mi15:28:464:27:5110:1310:14
10:03
-1:18

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

9:40 /mi

Average Pace

10:13 /mi

Slowest Pace

11:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:33:32

80% of race

Time at Steady Pace

42:49

16% of race

Time at Slower Pace

11:30

4% of race

Average Pace: 10:13 /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 mi11:31:0130:069:4130:06
9:41
#24818
10K
6.21 mi12:01:031:00:089:4130:02
9:40
#24688
15K
9.32 mi12:31:521:30:579:4530:49
9:55
#24727
20K
12.43 mi13:02:392:01:449:4830:47
9:54
#24528
Half
13.11 mi13:09:212:08:269:486:42
9:49
#24519
25K
15.53 mi13:34:292:33:349:5325:08
10:22
#24468
30K
18.64 mi14:07:223:06:2710:0032:53
10:35
#24235
20M
20.00 mi14:22:073:21:1210:0414:45
10:51
#24138
21M
21.00 mi14:33:373:32:4210:0811:30
11:30
#24071
35K
21.75 mi14:41:273:40:3210:087:50
10:28
#24030
23M
23.00 mi14:54:563:54:0110:1013:29
10:46
#23932
24M
24.00 mi15:05:364:04:4110:1210:40
10:40
#23901
40K
24.85 mi15:14:374:13:4210:129:01
10:33
#23836
25.2M
25.20 mi15:18:324:17:3710:133:55
11:21
#23803
Finish
26.22 mi15:28:464:27:5110:1310:14
10:03
#23799
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi24818101191011924832(Top 87%)10125(Top 83%)10125(Top 1019%)
10K6.21 mi3.10 mi24688+13010057+6210057+6224528(Top 86%)9978(Top 82%)9978(Top 1004%)
15K9.32 mi3.11 mi24727-3910073-1610073-1624832(Top 87%)10125(Top 83%)10125(Top 1019%)
20K12.43 mi3.11 mi24528+1999989+849989+8424043(Top 85%)9732(Top 80%)9732(Top 979%)
Half13.11 mi0.68 mi24519+99983+69983+624445(Top 86%)9966(Top 82%)9966(Top 1003%)
25K15.53 mi2.42 mi24468+519963+209963+2024109(Top 85%)9801(Top 80%)9801(Top 986%)
30K18.64 mi3.11 mi24235+2339855+1089855+10823140(Top 81%)9405(Top 77%)9405(Top 946%)
20M20.00 mi1.36 mi24138+979831+249831+2423294(Top 82%)9580(Top 78%)9580(Top 964%)
21M21.00 mi1.00 mi24071+679804+279804+2722629(Top 80%)9318(Top 76%)9318(Top 937%)
35K21.75 mi0.75 mi24030+419798+69798+623115(Top 81%)9611(Top 79%)9611(Top 967%)
23M23.00 mi1.25 mi23932+989766+329766+3222687(Top 80%)9437(Top 77%)9437(Top 949%)
24M24.00 mi1.00 mi23901+319754+129754+1223251(Top 82%)9762(Top 80%)9762(Top 982%)
40K24.85 mi0.85 mi23836+659735+199735+1922063(Top 78%)9235(Top 76%)9235(Top 929%)
25.2M25.20 mi0.35 mi23803+339727+89727+821719(Top 76%)9025(Top 74%)9025(Top 908%)
Finish26.22 mi1.02 mi23799+49736-99736-923077(Top 81%)9702(Top 79%)9702(Top 976%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

24832

Females

10125

F55-59

10125

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

24528

Females

9978

F55-59

9978

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

24832

Females

10125

F55-59

10125

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

24043

Females

9732

F55-59

9732

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

24445

Females

9966

F55-59

9966

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

24109

Females

9801

F55-59

9801

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

23140

Females

9405

F55-59

9405

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

23294

Females

9580

F55-59

9580

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

22629

Females

9318

F55-59

9318

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

23115

Females

9611

F55-59

9611

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

22687

Females

9437

F55-59

9437

23M→24M

23.0 - 24.0 mi

Top 82%
×6story building
+12ft-82ft

Overall

23251

Females

9762

F55-59

9762

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22063

Females

9235

F55-59

9235

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21719

Females

9025

F55-59

9025

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

23077

Females

9702

F55-59

9702

Passing Analysis

Category:
Athletes Passed
1693
Passed By
674
Net Change
+1019
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24818
5K → 10K272142+130#24818#24688
10K → 15K130169-39#24688#24727
15K → 20K24546+199#24727#24528
20K → Half2920+9#24528#24519
Half → 25K13382+51#24519#24468
25K → 30K27542+233#24468#24235
30K → 20M11922+97#24235#24138
20M → 21M9326+67#24138#24071
21M → 35K6120+41#24071#24030
35K → 23M11618+98#24030#23932
23M → 24M6231+31#23932#23901
24M → 40K7914+65#23901#23836
40K → 25.2M407+33#23836#23803
25.2M → Finish3935+4#23803#23799
TOTALS1693674+1019
📊

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