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BOSTON MARATHON 2025

Melanie Tremblay

Bib: 21712•F

QC

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 48%
Division (F45-49)
#0 / 1813
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
8:09/mi
25:18
↑ 97↓ 3451.5%
10K· 6.21 mi
8:12/mi
50:46
↑ 79↓ 1380.4%
15K· 9.32 mi
8:21/mi
1:16:42
↑ 67↓ 78
20K· 12.43 mi
8:36/mi
1:43:26
↑ 106↓ 860.1%
Half· 13.11 mi
8:36/mi
1:49:18
↑ 19↓ 370.5%
25K· 15.53 mi
8:52/mi
2:10:48
↑ 66↓ 880.2%
30K· 18.64 mi
9:20/mi
2:39:47
↑ 181↓ 1480.2%
20M
9:27/mi
2:52:37
↑ 64↓ 500.2%
21M
10:10/mi
3:02:47
↑ 106↓ 241.6%
35K· 21.75 mi
9:09/mi
3:09:38
↑ 17↓ 861.7%
23M
9:29/mi
3:21:31
↑ 23↓ 630.6%
24M
9:22/mi
3:30:53
↓ 821.3%
40K· 24.85 mi
9:31/mi
3:39:01
↓ 200.3%
25.2M
10:00/mi
3:42:28
↑ 13↓ 160.2%
Finish· 26.22 mi
9:09/mi
3:51:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:18
Pace8:20 /mi
2nd Half
Distance13.11 mi
Time2:02:29
Pace9:21 /mi
📊Positive Split: 12.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:5425:188:0925:18
8:09
-
10K
6.21 mi11:46:2250:468:1025:28
8:12
+0:03
15K
9.32 mi12:12:181:16:428:1425:56
8:21
+0:09
20K
12.43 mi12:39:021:43:268:1926:44
8:36
+0:15
Half
13.11 mi12:44:541:49:188:205:52
8:36
0:00
25K
15.53 mi13:06:242:10:488:2521:30
8:52
+0:16
30K
18.64 mi13:35:232:39:478:3428:59
9:20
+0:28
20M
20.00 mi13:48:132:52:378:3812:50
9:27
+0:07
21M
21.00 mi13:58:233:02:478:4210:10
10:10
+0:43
35K
21.75 mi14:05:143:09:388:436:51
9:09
-1:01
23M
23.00 mi14:17:073:21:318:4611:53
9:29
+0:20
24M
24.00 mi14:26:293:30:538:479:22
9:22
-0:07
40K
24.85 mi14:34:373:39:018:498:08
9:31
+0:09
25.2M
25.20 mi14:38:043:42:288:503:27
10:00
+0:29
Finish
26.22 mi14:47:233:51:478:519:19
9:09
-0:51

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

8:09 /mi

Average Pace

8:51 /mi

Slowest Pace

10:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:18

47% of race

Time at Steady Pace

1:16:01

33% of race

Time at Slower Pace

46:28

20% of race

Average Pace: 8:50 /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 mi11:20:5425:188:0925:18
8:09
#17701
10K
6.21 mi11:46:2250:468:1025:28
8:12
#17778
15K
9.32 mi12:12:181:16:428:1425:56
8:21
#17962
20K
12.43 mi12:39:021:43:268:1926:44
8:36
#18149
Half
13.11 mi12:44:541:49:188:205:52
8:36
#18219
25K
15.53 mi13:06:242:10:488:2521:30
8:52
#18413
30K
18.64 mi13:35:232:39:478:3428:59
9:20
#18587
20M
20.00 mi13:48:132:52:378:3812:50
9:27
#18602
21M
21.00 mi13:58:233:02:478:4210:10
10:10
#18638
35K
21.75 mi14:05:143:09:388:436:51
9:09
#18659
23M
23.00 mi14:17:073:21:318:4611:53
9:29
#18652
24M
24.00 mi14:26:293:30:538:479:22
9:22
#18681
40K
24.85 mi14:34:373:39:018:498:08
9:31
#18695
25.2M
25.20 mi14:38:043:42:288:503:27
10:00
#18654
Finish
26.22 mi14:47:233:51:478:519:19
9:09
#18699
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi177016157615718381(Top 65%)6544(Top 54%)6544(Top 361%)
10K6.21 mi3.10 mi17778-776193-366193-3617884(Top 63%)6232(Top 51%)6232(Top 344%)
15K9.32 mi3.11 mi17962-1846306-1136306-11318381(Top 65%)6544(Top 54%)6544(Top 361%)
20K12.43 mi3.11 mi18149-1876422-1166422-11618893(Top 67%)6851(Top 56%)6851(Top 378%)
Half13.11 mi0.68 mi18219-706469-476469-4719835(Top 70%)7373(Top 60%)7373(Top 407%)
25K15.53 mi2.42 mi18413-1946588-1196588-11919279(Top 68%)7131(Top 58%)7131(Top 393%)
30K18.64 mi3.11 mi18587-1746710-1226710-12219249(Top 68%)7253(Top 59%)7253(Top 400%)
20M20.00 mi1.36 mi18602-156746-366746-3618922(Top 67%)7221(Top 59%)7221(Top 398%)
21M21.00 mi1.00 mi18638-366798-526798-5218929(Top 67%)7300(Top 60%)7300(Top 403%)
35K21.75 mi0.75 mi18659-216827-296827-2919007(Top 67%)7458(Top 61%)7458(Top 411%)
23M23.00 mi1.25 mi18652+76854-276854-2718672(Top 66%)7332(Top 60%)7332(Top 404%)
24M24.00 mi1.00 mi18681-296892-386892-3819106(Top 67%)7599(Top 62%)7599(Top 419%)
40K24.85 mi0.85 mi18695-146932-406932-4018770(Top 66%)7508(Top 61%)7508(Top 414%)
25.2M25.20 mi0.35 mi18654+416923+96923+917123(Top 60%)6661(Top 54%)6661(Top 367%)
Finish26.22 mi1.02 mi18699-456960-376960-3719713(Top 69%)7983(Top 65%)7983(Top 440%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21story building
+97ft-345ft

Overall

18381

Females

6544

F45-49

6544

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

17884

Females

6232

F45-49

6232

10K→15K

6.2 - 9.3 mi

Top 65%
×3story building
+67ft-78ft

Overall

18381

Females

6544

F45-49

6544

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

18893

Females

6851

F45-49

6851

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

19835

Females

7373

F45-49

7373

Half→25K

13.1 - 15.5 mi

Top 68%
×4story building
+66ft-88ft

Overall

19279

Females

7131

F45-49

7131

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

19249

Females

7253

F45-49

7253

30K→20M

18.6 - 20.0 mi

Top 67%
×5story building
+64ft-50ft

Overall

18922

Females

7221

F45-49

7221

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

18929

Females

7300

F45-49

7300

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

19007

Females

7458

F45-49

7458

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

18672

Females

7332

F45-49

7332

23M→24M

23.0 - 24.0 mi

Top 67%
×6story building
+12ft-82ft

Overall

19106

Females

7599

F45-49

7599

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18770

Females

7508

F45-49

7508

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

17123

Females

6661

F45-49

6661

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2story building
+22ft-21ft

Overall

19713

Females

7983

F45-49

7983

Passing Analysis

Category:
Athletes Passed
1413
Passed By
2411
Net Change
-998
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17701
5K → 10K250327-77#17701#17778
10K → 15K131315-184#17778#17962
15K → 20K131318-187#17962#18149
20K → Half2595-70#18149#18219
Half → 25K108302-194#18219#18413
25K → 30K184358-174#18413#18587
30K → 20M101116-15#18587#18602
20M → 21M94130-36#18602#18638
21M → 35K5374-21#18638#18659
35K → 23M112105+7#18659#18652
23M → 24M5685-29#18652#18681
24M → 40K7084-14#18681#18695
40K → 25.2M5817+41#18695#18654
25.2M → Finish4085-45#18654#18699
TOTALS14132411-998
📊

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