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BOSTON MARATHON 2025

Michelle Backus

Bib: 26061•F

CT

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F40-44)
#0 / 1718
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
8:26/mi
26:13
↑ 97↓ 3451.5%
10K· 6.21 mi
8:19/mi
52:04
↑ 79↓ 1380.4%
15K· 9.32 mi
9:11/mi
1:20:36
↑ 67↓ 78
20K· 12.43 mi
8:42/mi
1:47:37
↑ 106↓ 860.1%
Half· 13.11 mi
8:29/mi
1:53:24
↑ 19↓ 370.5%
25K· 15.53 mi
9:10/mi
2:15:38
↑ 66↓ 880.2%
30K· 18.64 mi
9:53/mi
2:46:20
↑ 181↓ 1480.2%
20M
12:47/mi
3:03:42
↑ 64↓ 500.2%
21M
11:59/mi
3:15:41
↑ 106↓ 241.6%
35K· 21.75 mi
12:08/mi
3:24:46
↑ 17↓ 861.7%
23M
13:01/mi
3:41:04
↑ 23↓ 630.6%
24M
10:08/mi
3:51:12
↓ 821.3%
40K· 24.85 mi
11:00/mi
4:00:36
↓ 200.3%
25.2M
12:25/mi
4:04:53
↑ 13↓ 160.2%
Finish· 26.22 mi
10:51/mi
4:15:56
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:24
Pace8:39 /mi
2nd Half
Distance13.11 mi
Time2:22:32
Pace10:52 /mi
📊Positive Split: 25.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:4926:138:2626:13
8:26
-
10K
6.21 mi11:45:4052:048:2325:51
8:19
-0:07
15K
9.32 mi12:14:121:20:368:3928:32
9:11
+0:52
20K
12.43 mi12:41:131:47:378:4027:01
8:42
-0:29
Half
13.11 mi12:47:001:53:248:395:47
8:29
-0:13
25K
15.53 mi13:09:142:15:388:4422:14
9:10
+0:41
30K
18.64 mi13:39:562:46:208:5530:42
9:53
+0:43
20M
20.00 mi13:57:183:03:429:1117:22
12:47
+2:54
21M
21.00 mi14:09:173:15:419:1911:59
11:59
-0:48
35K
21.75 mi14:18:223:24:469:259:05
12:08
+0:09
23M
23.00 mi14:34:403:41:049:3716:18
13:01
+0:53
24M
24.00 mi14:44:483:51:129:3810:08
10:08
-2:53
40K
24.85 mi14:54:124:00:369:419:24
11:00
+0:52
25.2M
25.20 mi14:58:294:04:539:434:17
12:25
+1:25
Finish
26.22 mi15:09:324:15:569:4611:03
10:51
-1:34

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

8:19 /mi

Average Pace

9:46 /mi

Slowest Pace

13:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:15:38

53% of race

Time at Steady Pace

51:53

20% of race

Time at Slower Pace

1:08:25

27% of race

Average Pace: 9:46 /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 mi11:19:4926:138:2626:13
8:26
#19546
10K
6.21 mi11:45:4052:048:2325:51
8:19
#19125
15K
9.32 mi12:14:121:20:368:3928:32
9:11
#20477
20K
12.43 mi12:41:131:47:378:4027:01
8:42
#20195
Half
13.11 mi12:47:001:53:248:395:47
8:29
#20117
25K
15.53 mi13:09:142:15:388:4422:14
9:10
#20261
30K
18.64 mi13:39:562:46:208:5530:42
9:53
#20494
20M
20.00 mi13:57:183:03:429:1117:22
12:47
#21391
21M
21.00 mi14:09:173:15:419:1911:59
11:59
#21603
35K
21.75 mi14:18:223:24:469:259:05
12:08
#21890
23M
23.00 mi14:34:403:41:049:3716:18
13:01
#22319
24M
24.00 mi14:44:483:51:129:3810:08
10:08
#22290
40K
24.85 mi14:54:124:00:369:419:24
11:00
#22321
25.2M
25.20 mi14:58:294:04:539:434:17
12:25
#22340
Finish
26.22 mi15:09:324:15:569:4611:03
10:51
#22467
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi195467229722922812(Top 80%)9005(Top 74%)9005(Top 524%)
10K6.21 mi3.10 mi19125+4216974+2556974+25518693(Top 66%)6708(Top 55%)6708(Top 390%)
15K9.32 mi3.11 mi20477-13527741-7677741-76722812(Top 80%)9005(Top 74%)9005(Top 524%)
20K12.43 mi3.11 mi20195+2827588+1537588+15319411(Top 68%)7147(Top 58%)7147(Top 416%)
Half13.11 mi0.68 mi20117+787543+457543+4519136(Top 67%)6995(Top 57%)6995(Top 407%)
25K15.53 mi2.42 mi20261-1447639-967639-9620664(Top 73%)7912(Top 65%)7912(Top 461%)
30K18.64 mi3.11 mi20494-2337814-1757814-17521253(Top 75%)8376(Top 68%)8376(Top 488%)
20M20.00 mi1.36 mi21391-8978323-5098323-50926231(Top 92%)11130(Top 91%)11130(Top 648%)
21M21.00 mi1.00 mi21603-2128449-1268449-12623573(Top 83%)9797(Top 80%)9797(Top 570%)
35K21.75 mi0.75 mi21890-2878617-1688617-16826071(Top 92%)11129(Top 91%)11129(Top 648%)
23M23.00 mi1.25 mi22319-4298894-2778894-27726394(Top 93%)11293(Top 92%)11293(Top 657%)
24M24.00 mi1.00 mi22290+298902-88902-821765(Top 77%)9014(Top 74%)9014(Top 525%)
40K24.85 mi0.85 mi22321-318933-318933-3123146(Top 81%)9776(Top 80%)9776(Top 569%)
25.2M25.20 mi0.35 mi22340-198952-198952-1924067(Top 85%)10196(Top 83%)10196(Top 593%)
Finish26.22 mi1.02 mi22467-1279041-899041-8925059(Top 88%)10678(Top 87%)10678(Top 622%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

22812

Females

9005

F40-44

9005

5K→10K

3.1 - 6.2 mi

Top 66%
×5story building
+79ft-138ft

Overall

18693

Females

6708

F40-44

6708

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

22812

Females

9005

F40-44

9005

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

19411

Females

7147

F40-44

7147

20K→Half

12.4 - 13.1 mi

Top 67%
×2story building
+19ft-37ft

Overall

19136

Females

6995

F40-44

6995

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

20664

Females

7912

F40-44

7912

25K→30K

15.5 - 18.6 mi

Top 75%
×9story building
+181ft-148ft

Overall

21253

Females

8376

F40-44

8376

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

26231

Females

11130

F40-44

11130

20M→21M

20.0 - 21.0 mi

Top 83%
×8story building
+106ft-24ft

Overall

23573

Females

9797

F40-44

9797

21M→35K

21.0 - 21.8 mi

Top 92%
×7story building
+17ft-86ft

Overall

26071

Females

11129

F40-44

11129

35K→23M

21.8 - 23.0 mi

Top 93%
×5story building
+23ft-63ft

Overall

26394

Females

11293

F40-44

11293

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

21765

Females

9014

F40-44

9014

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

23146

Females

9776

F40-44

9776

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

24067

Females

10196

F40-44

10196

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2story building
+22ft-21ft

Overall

25059

Females

10678

F40-44

10678

Passing Analysis

Category:
Athletes Passed
1443
Passed By
4364
Net Change
-2921
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19546
5K → 10K529108+421#19546#19125
10K → 15K211373-1352#19125#20477
15K → 20K33654+282#20477#20195
20K → Half846+78#20195#20117
Half → 25K114258-144#20117#20261
25K → 30K160393-233#20261#20494
30K → 20M13910-897#20494#21391
20M → 21M31243-212#21391#21603
21M → 35K5292-287#21603#21890
35K → 23M24453-429#21890#22319
23M → 24M7041+29#22319#22290
24M → 40K3263-31#22290#22321
40K → 25.2M1130-19#22321#22340
25.2M → Finish13140-127#22340#22467
TOTALS14434364-2921
📊

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