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BOSTON MARATHON 2025

Amy Sennett

MA

Bib: 21381 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 31%
Gender (Female)
#0 / 12228
Top 14%
Masters (Masters Women)
#0 / 6759
Top 5%
Division (F40-44)
#0 / 1718
Top 11%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:38/mi
23:42
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:28/mi
46:55
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:15/mi
1:09:26
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:16/mi
1:32:01
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:14/mi
1:36:57
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:16/mi
1:54:33
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:50/mi
2:18:54
↑ 181↓ 1480.2%
138 ft elev
20M
7:32/mi
2:29:08
↑ 64↓ 500.2%
148 ft elev
21M
8:55/mi
2:38:03
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:18/mi
2:43:31
↑ 17↓ 861.7%
156 ft elev
23M
7:34/mi
2:53:00
↑ 23↓ 630.6%
116 ft elev
24M
7:17/mi
3:00:17
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:17/mi
3:06:31
↓ 200.3%
20 ft elev
25.2M
7:50/mi
3:09:13
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:46/mi
3:16:07
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:57
Pace7:24 /mi
2nd Half
Distance13.11 mi
Time1:39:10
Pace7:34 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:3823:427:3823:42
7:38
-
10K
6.21 mi11:39:5146:557:3323:13
7:28
-0:10
15K
9.32 mi12:02:221:09:267:2722:31
7:15
-0:13
20K
12.43 mi12:24:571:32:017:2422:35
7:16
+0:01
Half
13.11 mi12:29:531:36:577:244:56
7:14
-0:02
25K
15.53 mi12:47:291:54:337:2217:36
7:16
+0:02
30K
18.64 mi13:11:502:18:547:2724:21
7:50
+0:34
20M
20.00 mi13:22:042:29:087:2710:14
7:32
-0:18
21M
21.00 mi13:30:592:38:037:328:55
8:55
+1:23
35K
21.75 mi13:36:272:43:317:315:28
7:18
-1:37
23M
23.00 mi13:45:562:53:007:319:29
7:34
+0:16
24M
24.00 mi13:53:133:00:177:317:17
7:17
-0:17
40K
24.85 mi13:59:273:06:317:306:14
7:17
0:00
25.2M
25.20 mi14:02:093:09:137:312:42
7:50
+0:33
Finish
26.22 mi14:09:033:16:077:296:54
6:46
-1:04

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

6:46 /mi

Average Pace

7:29 /mi

Slowest Pace

8:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

6:54

4% of race

Time at Steady Pace

1:49:50

56% of race

Time at Slower Pace

1:19:23

40% of race

Average Pace: 7:29 /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 mi11:16:3823:427:3823:42
7:38
#13355
10K
6.21 mi11:39:5146:557:3323:13
7:28
#12580
15K
9.32 mi12:02:221:09:267:2722:31
7:15
#11529
20K
12.43 mi12:24:571:32:017:2422:35
7:16
#10798
Half
13.11 mi12:29:531:36:577:244:56
7:14
#10717
25K
15.53 mi12:47:291:54:337:2217:36
7:16
#10225
30K
18.64 mi13:11:502:18:547:2724:21
7:50
#10159
20M
20.00 mi13:22:042:29:087:2710:14
7:32
#9849
21M
21.00 mi13:30:592:38:037:328:55
8:55
#10053
35K
21.75 mi13:36:272:43:317:315:28
7:18
#9904
23M
23.00 mi13:45:562:53:007:319:29
7:34
#9689
24M
24.00 mi13:53:133:00:177:317:17
7:17
#9468
40K
24.85 mi13:59:273:06:317:306:14
7:17
#9277
25.2M
25.20 mi14:02:093:09:137:312:42
7:50
#9171
Finish
26.22 mi14:09:033:16:077:296:54
6:46
#8896
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi13355351635169543(Top 34%)1671(Top 14%)1671(Top 97%)
10K6.21 mi3.10 mi12580+7753112+4043112+40411845(Top 42%)2728(Top 22%)2728(Top 159%)
15K9.32 mi3.11 mi11529+10512592+5202592+5209543(Top 34%)1671(Top 14%)1671(Top 97%)
20K12.43 mi3.11 mi10798+7312241+3512241+3518807(Top 31%)1442(Top 12%)1442(Top 84%)
Half13.11 mi0.68 mi10717+812203+382203+389449(Top 33%)1692(Top 14%)1692(Top 98%)
25K15.53 mi2.42 mi10225+4922012+1912012+1918081(Top 28%)1250(Top 10%)1250(Top 73%)
30K18.64 mi3.11 mi10159+662043-312043-3110201(Top 36%)2377(Top 19%)2377(Top 138%)
20M20.00 mi1.36 mi9849+3101917+1261917+1267249(Top 26%)1251(Top 10%)1251(Top 73%)
21M21.00 mi1.00 mi10053-2042060-1432060-14313030(Top 46%)4130(Top 34%)4130(Top 240%)
35K21.75 mi0.75 mi9904+1492011+492011+497323(Top 26%)1424(Top 12%)1424(Top 83%)
23M23.00 mi1.25 mi9689+2151946+651946+657100(Top 25%)1444(Top 12%)1444(Top 84%)
24M24.00 mi1.00 mi9468+2211885+611885+616354(Top 22%)1212(Top 10%)1212(Top 71%)
40K24.85 mi0.85 mi9277+1911832+531832+535652(Top 20%)1003(Top 8%)1003(Top 58%)
25.2M25.20 mi0.35 mi9171+1061803+291803+295137(Top 18%)935(Top 8%)935(Top 54%)
Finish26.22 mi1.02 mi8896+2751723+801723+804369(Top 15%)662(Top 5%)662(Top 39%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21story building
+97ft-345ft

Overall

9543

Females

1671

F40-44

1671

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

11845

Females

2728

F40-44

2728

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+67ft-78ft

Overall

9543

Females

1671

F40-44

1671

15K→20K

9.3 - 12.4 mi

Top 31%
×5story building
+106ft-86ft

Overall

8807

Females

1442

F40-44

1442

20K→Half

12.4 - 13.1 mi

Top 33%
×2story building
+19ft-37ft

Overall

9449

Females

1692

F40-44

1692

Half→25K

13.1 - 15.5 mi

Top 28%
×4story building
+66ft-88ft

Overall

8081

Females

1250

F40-44

1250

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

10201

Females

2377

F40-44

2377

30K→20M

18.6 - 20.0 mi

Top 26%
×5story building
+64ft-50ft

Overall

7249

Females

1251

F40-44

1251

20M→21M

20.0 - 21.0 mi

Top 46%
×8story building
+106ft-24ft

Overall

13030

Females

4130

F40-44

4130

21M→35K

21.0 - 21.8 mi

Top 26%
×7story building
+17ft-86ft

Overall

7323

Females

1424

F40-44

1424

35K→23M

21.8 - 23.0 mi

Top 25%
×5story building
+23ft-63ft

Overall

7100

Females

1444

F40-44

1444

23M→24M

23.0 - 24.0 mi

Top 22%
×6story building
+12ft-82ft

Overall

6354

Females

1212

F40-44

1212

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5652

Females

1003

F40-44

1003

40K→25.2M

24.9 - 25.2 mi

Top 18%
×1story
+13ft-16ft

Overall

5137

Females

935

F40-44

935

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2story building
+22ft-21ft

Overall

4369

Females

662

F40-44

662

Passing Analysis

Category:
Athletes Passed
5033*
Passed By
571
Net Change
+4459
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13355
5K → 10K83661+775#13355#12580
10K → 15K10554+1051#12580#11529
15K → 20K7343+731#11529#10798
20K → Half854+81#10798#10717
Half → 25K4942+492#10717#10225
25K → 30K266199+66#10225#10159
30K → 20M316*6+310#10159#9849
20M → 21M54256-204#9849#10053
21M → 35K1589+149#10053#9904
35K → 23M2249+215#9904#9689
23M → 24M2276+221#9689#9468
24M → 40K2009+191#9468#9277
40K → 25.2M1060+106#9277#9171
25.2M → Finish2783+275#9171#8896
TOTALS5033*571+4459

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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