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BOSTON MARATHON 2025

Robyn Cox

Bib: 17505•F

NS

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 24%
Gender (Female)
#0 / 12228
Top 7%
Masters (Masters Women)
#0 / 6759
Top 2%
Division (F40-44)
#0 / 1718
Top 5%
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
7:01/mi
21:48
↑ 97↓ 3451.5%
10K· 6.21 mi
7:02/mi
43:38
↑ 79↓ 1380.4%
15K· 9.32 mi
7:00/mi
1:05:24
↑ 67↓ 78
20K· 12.43 mi
7:02/mi
1:27:16
↑ 106↓ 860.1%
Half· 13.11 mi
6:56/mi
1:32:00
↑ 19↓ 370.5%
25K· 15.53 mi
7:00/mi
1:48:59
↑ 66↓ 880.2%
30K· 18.64 mi
7:35/mi
2:12:33
↑ 181↓ 1480.2%
20M
7:25/mi
2:22:38
↑ 64↓ 500.2%
21M
8:02/mi
2:30:40
↑ 106↓ 241.6%
35K· 21.75 mi
7:08/mi
2:36:00
↑ 17↓ 861.7%
23M
7:24/mi
2:45:16
↑ 23↓ 630.6%
24M
7:18/mi
2:52:34
↓ 821.3%
40K· 24.85 mi
7:23/mi
2:58:53
↓ 200.3%
25.2M
8:04/mi
3:01:40
↑ 13↓ 160.2%
Finish· 26.22 mi
6:58/mi
3:08:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:00
Pace7:01 /mi
2nd Half
Distance13.11 mi
Time1:36:46
Pace7:23 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:11:5821:487:0121:48
7:01
-
10K
6.21 mi11:33:4843:387:0121:50
7:02
+0:01
15K
9.32 mi11:55:341:05:247:0121:46
7:00
-0:02
20K
12.43 mi12:17:261:27:167:0121:52
7:02
+0:02
Half
13.11 mi12:22:101:32:007:014:44
6:56
-0:06
25K
15.53 mi12:39:091:48:597:0116:59
7:00
+0:04
30K
18.64 mi13:02:432:12:337:0723:34
7:35
+0:35
20M
20.00 mi13:12:482:22:387:0810:05
7:25
-0:10
21M
21.00 mi13:20:502:30:407:108:02
8:02
+0:37
35K
21.75 mi13:26:102:36:007:105:20
7:08
-0:54
23M
23.00 mi13:35:262:45:167:119:16
7:24
+0:16
24M
24.00 mi13:42:442:52:347:117:18
7:18
-0:06
40K
24.85 mi13:49:032:58:537:126:19
7:23
+0:05
25.2M
25.20 mi13:51:503:01:407:132:47
8:04
+0:41
Finish
26.22 mi13:58:563:08:467:127:06
6:58
-1:06

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

6:56 /mi

Average Pace

7:12 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:57:57

94% of race

Time at Steady Pace

10:49

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:12 /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 mi11:11:5821:487:0121:48
7:01
#7969
10K
6.21 mi11:33:4843:387:0121:50
7:02
#8043
15K
9.32 mi11:55:341:05:247:0121:46
7:00
#7877
20K
12.43 mi12:17:261:27:167:0121:52
7:02
#7635
Half
13.11 mi12:22:101:32:007:014:44
6:56
#7614
25K
15.53 mi12:39:091:48:597:0116:59
7:00
#7365
30K
18.64 mi13:02:432:12:337:0723:34
7:35
#7424
20M
20.00 mi13:12:482:22:387:0810:05
7:25
#7275
21M
21.00 mi13:20:502:30:407:108:02
8:02
#7229
35K
21.75 mi13:26:102:36:007:105:20
7:08
#7139
23M
23.00 mi13:35:262:45:167:119:16
7:24
#7017
24M
24.00 mi13:42:442:52:347:117:18
7:18
#6939
40K
24.85 mi13:49:032:58:537:126:19
7:23
#6855
25.2M
25.20 mi13:51:503:01:407:132:47
8:04
#6821
Finish
26.22 mi13:58:563:08:467:127:06
6:58
#6704
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi79699709707673(Top 27%)923(Top 8%)923(Top 54%)
10K6.21 mi3.10 mi8043-741008-381008-388136(Top 29%)1062(Top 9%)1062(Top 62%)
15K9.32 mi3.11 mi7877+166954+54954+547673(Top 27%)923(Top 8%)923(Top 54%)
20K12.43 mi3.11 mi7635+242898+56898+567123(Top 25%)812(Top 7%)812(Top 47%)
Half13.11 mi0.68 mi7614+21893+5893+57199(Top 25%)823(Top 7%)823(Top 48%)
25K15.53 mi2.42 mi7365+249830+63830+636376(Top 22%)688(Top 6%)688(Top 40%)
30K18.64 mi3.11 mi7424-59894-64894-648349(Top 29%)1527(Top 12%)1527(Top 89%)
20M20.00 mi1.36 mi7275+149885+9885+96528(Top 23%)972(Top 8%)972(Top 57%)
21M21.00 mi1.00 mi7229+46902-17902-177543(Top 27%)1523(Top 12%)1523(Top 89%)
35K21.75 mi0.75 mi7139+90892+10892+106186(Top 22%)976(Top 8%)976(Top 57%)
23M23.00 mi1.25 mi7017+122890+2890+26074(Top 21%)1046(Top 9%)1046(Top 61%)
24M24.00 mi1.00 mi6939+78899-9899-96441(Top 23%)1238(Top 10%)1238(Top 72%)
40K24.85 mi0.85 mi6855+84897+2897+26154(Top 22%)1194(Top 10%)1194(Top 69%)
25.2M25.20 mi0.35 mi6821+348978976370(Top 22%)1373(Top 11%)1373(Top 80%)
Finish26.22 mi1.02 mi6704+117893+4893+45539(Top 20%)1068(Top 9%)1068(Top 62%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21story building
+97ft-345ft

Overall

7673

Females

923

F40-44

923

5K→10K

3.1 - 6.2 mi

Top 29%
×5story building
+79ft-138ft

Overall

8136

Females

1062

F40-44

1062

10K→15K

6.2 - 9.3 mi

Top 27%
×3story building
+67ft-78ft

Overall

7673

Females

923

F40-44

923

15K→20K

9.3 - 12.4 mi

Top 25%
×5story building
+106ft-86ft

Overall

7123

Females

812

F40-44

812

20K→Half

12.4 - 13.1 mi

Top 25%
×2story building
+19ft-37ft

Overall

7199

Females

823

F40-44

823

Half→25K

13.1 - 15.5 mi

Top 22%
×4story building
+66ft-88ft

Overall

6376

Females

688

F40-44

688

25K→30K

15.5 - 18.6 mi

Top 29%
×9story building
+181ft-148ft

Overall

8349

Females

1527

F40-44

1527

30K→20M

18.6 - 20.0 mi

Top 23%
×5story building
+64ft-50ft

Overall

6528

Females

972

F40-44

972

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

7543

Females

1523

F40-44

1523

21M→35K

21.0 - 21.8 mi

Top 22%
×7story building
+17ft-86ft

Overall

6186

Females

976

F40-44

976

35K→23M

21.8 - 23.0 mi

Top 21%
×5story building
+23ft-63ft

Overall

6074

Females

1046

F40-44

1046

23M→24M

23.0 - 24.0 mi

Top 23%
×6story building
+12ft-82ft

Overall

6441

Females

1238

F40-44

1238

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

6154

Females

1194

F40-44

1194

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

6370

Females

1373

F40-44

1373

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2story building
+22ft-21ft

Overall

5539

Females

1068

F40-44

1068

Passing Analysis

Category:
Athletes Passed
2052
Passed By
787
Net Change
+1265
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7969
5K → 10K178252-74#7969#8043
10K → 15K23468+166#8043#7877
15K → 20K27432+242#7877#7635
20K → Half3514+21#7635#7614
Half → 25K26314+249#7614#7365
25K → 30K151210-59#7365#7424
30K → 20M17324+149#7424#7275
20M → 21M10761+46#7275#7229
21M → 35K955+90#7229#7139
35K → 23M14624+122#7139#7017
23M → 24M10830+78#7017#6939
24M → 40K11228+84#6939#6855
40K → 25.2M4410+34#6855#6821
25.2M → Finish13215+117#6821#6704
TOTALS2052787+1265
📊

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