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BOSTON MARATHON 2025

Marcie Redden

Bib: 23937•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 (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:36
Rank: #21929
Start → 5K
27:36 | 8:53/mi
10K· 6.21 mi
55:53
Rank: #22401 (-472)
5K → 10K
28:17 | 9:06/mi
15K· 9.32 mi
1:24:16
Rank: #22448 (-47)
10K → 15K
28:23 | 9:08/mi
20K· 12.43 mi
1:52:42
Rank: #22238 (+210)
15K → 20K
28:26 | 9:09/mi
Half· 13.11 mi
1:58:51
Rank: #22202 (+36)
20K → Half
6:09 | 9:01/mi
25K· 15.53 mi
2:21:37
Rank: #22080 (+122)
Half → 25K
22:46 | 9:23/mi
30K· 18.64 mi
2:52:08
Rank: #21921 (+159)
25K → 30K
30:31 | 9:49/mi
20M
3:05:55
Rank: #21854 (+67)
30K → 20M
13:47 | 10:09/mi
21M
3:16:34
Rank: #21760 (+94)
20M → 21M
10:39 | 10:39/mi
35K· 21.75 mi
3:23:51
Rank: #21740 (+20)
21M → 35K
7:17 | 9:44/mi
23M
3:36:34
Rank: #21668 (+72)
35K → 23M
12:43 | 10:09/mi
24M
3:46:31
Rank: #21653 (+15)
23M → 24M
9:57 | 9:57/mi
40K· 24.85 mi
3:55:27
Rank: #21654 (-1)
24M → 40K
8:56 | 10:27/mi
25.2M
3:59:13
Rank: #21623 (+31)
40K → 25.2M
3:46 | 10:55/mi
Finish· 26.22 mi
4:09:02
Rank: #21615 (+8)
25.2M → Finish
9:49 | 9:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:51
Pace9:04 /mi
2nd Half
Distance13.11 mi
Time2:10:11
Pace9:56 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:1627:368:5327:36
8:53
-
10K
6.21 mi11:55:3355:539:0028:17
9:06
+0:13
15K
9.32 mi12:23:561:24:169:0228:23
9:08
+0:02
20K
12.43 mi12:52:221:52:429:0428:26
9:09
+0:01
Half
13.11 mi12:58:311:58:519:046:09
9:01
-0:08
25K
15.53 mi13:21:172:21:379:0722:46
9:23
+0:22
30K
18.64 mi13:51:482:52:089:1430:31
9:49
+0:26
20M
20.00 mi14:05:353:05:559:1813:47
10:09
+0:20
21M
21.00 mi14:16:143:16:349:2210:39
10:39
+0:30
35K
21.75 mi14:23:313:23:519:227:17
9:44
-0:55
23M
23.00 mi14:36:143:36:349:2512:43
10:09
+0:25
24M
24.00 mi14:46:113:46:319:269:57
9:57
-0:12
40K
24.85 mi14:55:073:55:279:288:56
10:27
+0:30
25.2M
25.20 mi14:58:533:59:139:303:46
10:55
+0:28
Finish
26.22 mi15:08:424:09:029:309:49
9:38
-1:17

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

8:53 /mi

Average Pace

9:30 /mi

Slowest Pace

10:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21:37

57% of race

Time at Steady Pace

57:34

23% of race

Time at Slower Pace

49:51

20% of race

Average Pace: 9:30 /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 mi11:27:1627:368:5327:36
8:53
#21929
10K
6.21 mi11:55:3355:539:0028:17
9:06
#22401
15K
9.32 mi12:23:561:24:169:0228:23
9:08
#22448
20K
12.43 mi12:52:221:52:429:0428:26
9:09
#22238
Half
13.11 mi12:58:311:58:519:046:09
9:01
#22202
25K
15.53 mi13:21:172:21:379:0722:46
9:23
#22080
30K
18.64 mi13:51:482:52:089:1430:31
9:49
#21921
20M
20.00 mi14:05:353:05:559:1813:47
10:09
#21854
21M
21.00 mi14:16:143:16:349:2210:39
10:39
#21760
35K
21.75 mi14:23:313:23:519:227:17
9:44
#21740
23M
23.00 mi14:36:143:36:349:2512:43
10:09
#21668
24M
24.00 mi14:46:113:46:319:269:57
9:57
#21653
40K
24.85 mi14:55:073:55:279:288:56
10:27
#21654
25.2M
25.20 mi14:58:533:59:139:303:46
10:55
#21623
Finish
26.22 mi15:08:424:09:029:309:49
9:38
#21615
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi219298589858922618(Top 80%)8904(Top 73%)8904(Top 683%)
10K6.21 mi3.10 mi22401-4728835-2468835-24622843(Top 80%)9041(Top 74%)9041(Top 694%)
15K9.32 mi3.11 mi22448-478833+28833+222618(Top 80%)8904(Top 73%)8904(Top 683%)
20K12.43 mi3.11 mi22238+2108724+1098724+10921693(Top 76%)8425(Top 69%)8425(Top 647%)
Half13.11 mi0.68 mi22202+368710+148710+1421917(Top 77%)8553(Top 70%)8553(Top 656%)
25K15.53 mi2.42 mi22080+1228650+608650+6021521(Top 76%)8374(Top 68%)8374(Top 643%)
30K18.64 mi3.11 mi21921+1598580+708580+7021067(Top 74%)8268(Top 68%)8268(Top 635%)
20M20.00 mi1.36 mi21854+678555+258555+2521424(Top 75%)8591(Top 70%)8591(Top 659%)
21M21.00 mi1.00 mi21760+948531+248531+2420469(Top 72%)8169(Top 67%)8169(Top 627%)
35K21.75 mi0.75 mi21740+208533-28533-221143(Top 74%)8585(Top 70%)8585(Top 659%)
23M23.00 mi1.25 mi21668+728530+38530+320999(Top 74%)8556(Top 70%)8556(Top 657%)
24M24.00 mi1.00 mi21653+158547-178547-1721225(Top 75%)8718(Top 71%)8718(Top 669%)
40K24.85 mi0.85 mi21654-18572-258572-2521787(Top 77%)9084(Top 74%)9084(Top 697%)
25.2M25.20 mi0.35 mi21623+318557+158557+1520435(Top 72%)8383(Top 69%)8383(Top 643%)
Finish26.22 mi1.02 mi21615+88567-108567-1021680(Top 76%)9004(Top 74%)9004(Top 691%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

22618

Females

8904

F50-54

8904

5K→10K

3.1 - 6.2 mi

Top 80%
×5stories
+79ft-138ft

Overall

22843

Females

9041

F50-54

9041

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

22618

Females

8904

F50-54

8904

15K→20K

9.3 - 12.4 mi

Top 76%
×5stories
+106ft-86ft

Overall

21693

Females

8425

F50-54

8425

20K→Half

12.4 - 13.1 mi

Top 77%
×2stories
+19ft-37ft

Overall

21917

Females

8553

F50-54

8553

Half→25K

13.1 - 15.5 mi

Top 76%
×4stories
+66ft-88ft

Overall

21521

Females

8374

F50-54

8374

25K→30K

15.5 - 18.6 mi

Top 74%
×9stories
+181ft-148ft

Overall

21067

Females

8268

F50-54

8268

30K→20M

18.6 - 20.0 mi

Top 75%
×5stories
+64ft-50ft

Overall

21424

Females

8591

F50-54

8591

20M→21M

20.0 - 21.0 mi

Top 72%
×8stories
+106ft-24ft

Overall

20469

Females

8169

F50-54

8169

21M→35K

21.0 - 21.8 mi

Top 74%
×7stories
+17ft-86ft

Overall

21143

Females

8585

F50-54

8585

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

20999

Females

8556

F50-54

8556

23M→24M

23.0 - 24.0 mi

Top 75%
×6stories
+12ft-82ft

Overall

21225

Females

8718

F50-54

8718

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

21787

Females

9084

F50-54

9084

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20435

Females

8383

F50-54

8383

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2stories
+22ft-21ft

Overall

21680

Females

9004

F50-54

9004

Passing Analysis

Category:
Athletes Passed
1701
Passed By
1387
Net Change
+314
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21929
5K → 10K106578-472#21929#22401
10K → 15K156203-47#22401#22448
15K → 20K28575+210#22448#22238
20K → Half5317+36#22238#22202
Half → 25K20886+122#22202#22080
25K → 30K273114+159#22080#21921
30K → 20M12053+67#21921#21854
20M → 21M13238+94#21854#21760
21M → 35K5030+20#21760#21740
35K → 23M11038+72#21740#21668
23M → 24M6146+15#21668#21653
24M → 40K5960-1#21653#21654
40K → 25.2M4110+31#21654#21623
25.2M → Finish4739+8#21623#21615
TOTALS17011387+314
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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