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BOSTON MARATHON 2025

Margaret Marten

Bib: 20023•F

SC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 45%
Masters (Masters Women)
#0 / 6759
Top 32%
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
8:06/mi
25:11
↑ 97↓ 3451.5%
10K· 6.21 mi
8:05/mi
50:17
↑ 79↓ 1380.4%
15K· 9.32 mi
8:23/mi
1:16:21
↑ 67↓ 78
20K· 12.43 mi
8:06/mi
1:41:31
↑ 106↓ 860.1%
Half· 13.11 mi
7:58/mi
1:46:57
↑ 19↓ 370.5%
25K· 15.53 mi
8:08/mi
2:06:40
↑ 66↓ 880.2%
30K· 18.64 mi
8:33/mi
2:33:14
↑ 181↓ 1480.2%
20M
9:31/mi
2:46:10
↑ 64↓ 500.2%
21M
9:38/mi
2:55:48
↑ 106↓ 241.6%
35K· 21.75 mi
9:16/mi
3:02:44
↑ 17↓ 861.7%
23M
8:55/mi
3:13:54
↑ 23↓ 630.6%
24M
8:44/mi
3:22:38
↓ 821.3%
40K· 24.85 mi
8:44/mi
3:30:06
↓ 200.3%
25.2M
8:48/mi
3:33:08
↑ 13↓ 160.2%
Finish· 26.22 mi
7:44/mi
3:41:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:57
Pace8:09 /mi
2nd Half
Distance13.11 mi
Time1:54:04
Pace8:42 /mi
📊Positive Split: 6.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:2425:118:0625:11
8:06
-
10K
6.21 mi11:42:3050:178:0625:06
8:05
-0:01
15K
9.32 mi12:08:341:16:218:1126:04
8:23
+0:18
20K
12.43 mi12:33:441:41:318:1025:10
8:06
-0:17
Half
13.11 mi12:39:101:46:578:095:26
7:58
-0:08
25K
15.53 mi12:58:532:06:408:0919:43
8:08
+0:10
30K
18.64 mi13:25:272:33:148:1326:34
8:33
+0:25
20M
20.00 mi13:38:232:46:108:1812:56
9:31
+0:58
21M
21.00 mi13:48:012:55:488:229:38
9:38
+0:07
35K
21.75 mi13:54:573:02:448:246:56
9:16
-0:22
23M
23.00 mi14:06:073:13:548:2611:10
8:55
-0:21
24M
24.00 mi14:14:513:22:388:278:44
8:44
-0:11
40K
24.85 mi14:22:193:30:068:277:28
8:44
0:00
25.2M
25.20 mi14:25:213:33:088:273:02
8:48
+0:04
Finish
26.22 mi14:33:143:41:018:267:53
7:44
-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

7:44 /mi

Average Pace

8:26 /mi

Slowest Pace

9:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:29

49% of race

Time at Steady Pace

1:11:52

33% of race

Time at Slower Pace

40:40

18% of race

Average Pace: 8:26 /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 mi11:17:2425:118:0625:11
8:06
#17398
10K
6.21 mi11:42:3050:178:0625:06
8:05
#17213
15K
9.32 mi12:08:341:16:218:1126:04
8:23
#17710
20K
12.43 mi12:33:441:41:318:1025:10
8:06
#17145
Half
13.11 mi12:39:101:46:578:095:26
7:58
#17066
25K
15.53 mi12:58:532:06:408:0919:43
8:08
#16670
30K
18.64 mi13:25:272:33:148:1326:34
8:33
#16346
20M
20.00 mi13:38:232:46:108:1812:56
9:31
#16567
21M
21.00 mi13:48:012:55:488:229:38
9:38
#16528
35K
21.75 mi13:54:573:02:448:246:56
9:16
#16630
23M
23.00 mi14:06:073:13:548:2611:10
8:55
#16536
24M
24.00 mi14:14:513:22:388:278:44
8:44
#16507
40K
24.85 mi14:22:193:30:068:277:28
8:44
#16419
25.2M
25.20 mi14:25:213:33:088:273:02
8:48
#16326
Finish
26.22 mi14:33:143:41:018:267:53
7:44
#16122
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi173985971597118634(Top 66%)6680(Top 55%)6680(Top 389%)
10K6.21 mi3.10 mi17213+1855856+1155856+11517061(Top 60%)5739(Top 47%)5739(Top 334%)
15K9.32 mi3.11 mi17710-4976148-2926148-29218634(Top 66%)6680(Top 55%)6680(Top 389%)
20K12.43 mi3.11 mi17145+5655826+3225826+32215660(Top 55%)5015(Top 41%)5015(Top 292%)
Half13.11 mi0.68 mi17066+795786+405786+4015687(Top 55%)5007(Top 41%)5007(Top 291%)
25K15.53 mi2.42 mi16670+3965569+2175569+21714867(Top 52%)4685(Top 38%)4685(Top 273%)
30K18.64 mi3.11 mi16346+3245439+1305439+13015097(Top 53%)4958(Top 41%)4958(Top 289%)
20M20.00 mi1.36 mi16567-2215596-1575596-15719256(Top 68%)7396(Top 60%)7396(Top 431%)
21M21.00 mi1.00 mi16528+395596559616710(Top 59%)6092(Top 50%)6092(Top 355%)
35K21.75 mi0.75 mi16630-1025679-835679-8319455(Top 68%)7687(Top 63%)7687(Top 447%)
23M23.00 mi1.25 mi16536+945656+235656+2315805(Top 56%)5776(Top 47%)5776(Top 336%)
24M24.00 mi1.00 mi16507+295664-85664-815947(Top 56%)5901(Top 48%)5901(Top 343%)
40K24.85 mi0.85 mi16419+885644+205644+2014837(Top 52%)5434(Top 44%)5434(Top 316%)
25.2M25.20 mi0.35 mi16326+935598+465598+4610741(Top 38%)3397(Top 28%)3397(Top 198%)
Finish26.22 mi1.02 mi16122+2045502+965502+9611021(Top 39%)3489(Top 29%)3489(Top 203%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

18634

Females

6680

F40-44

6680

5K→10K

3.1 - 6.2 mi

Top 60%
×5story building
+79ft-138ft

Overall

17061

Females

5739

F40-44

5739

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

18634

Females

6680

F40-44

6680

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

15660

Females

5015

F40-44

5015

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

15687

Females

5007

F40-44

5007

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

14867

Females

4685

F40-44

4685

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

15097

Females

4958

F40-44

4958

30K→20M

18.6 - 20.0 mi

Top 68%
×5story building
+64ft-50ft

Overall

19256

Females

7396

F40-44

7396

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

16710

Females

6092

F40-44

6092

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

19455

Females

7687

F40-44

7687

35K→23M

21.8 - 23.0 mi

Top 56%
×5story building
+23ft-63ft

Overall

15805

Females

5776

F40-44

5776

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

15947

Females

5901

F40-44

5901

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14837

Females

5434

F40-44

5434

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10741

Females

3397

F40-44

3397

25.2M→Finish

25.2 - 26.2 mi

Top 39%
×2story building
+22ft-21ft

Overall

11021

Females

3489

F40-44

3489

Passing Analysis

Category:
Athletes Passed
2817
Passed By
1541
Net Change
+1276
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17398
5K → 10K395210+185#17398#17213
10K → 15K75572-497#17213#17710
15K → 20K5727+565#17710#17145
20K → Half834+79#17145#17066
Half → 25K40610+396#17066#16670
25K → 30K39369+324#16670#16346
30K → 20M53274-221#16346#16567
20M → 21M12586+39#16567#16528
21M → 35K41143-102#16528#16630
35K → 23M15359+94#16630#16536
23M → 24M9061+29#16536#16507
24M → 40K12032+88#16507#16419
40K → 25.2M985+93#16419#16326
25.2M → Finish2139+204#16326#16122
TOTALS28171541+1276
📊

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