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BOSTON MARATHON 2025

Gretchen Vassar

Bib: 22119•F

MD

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 43%
Masters (Masters Women)
#0 / 6759
Top 30%
Division (F45-49)
#0 / 1813
Top 36%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:33
Rank: #18266
Start → 5K
25:33 | 8:13/mi
10K· 6.21 mi
50:56
Rank: #17966 (+300)
5K → 10K
25:23 | 8:10/mi
15K· 9.32 mi
1:16:21
Rank: #17708 (+258)
10K → 15K
25:25 | 8:11/mi
20K· 12.43 mi
1:42:26
Rank: #17627 (+81)
15K → 20K
26:05 | 8:24/mi
Half· 13.11 mi
1:48:00
Rank: #17602 (+25)
20K → Half
5:34 | 8:10/mi
25K· 15.53 mi
2:08:08
Rank: #17266 (+336)
Half → 25K
20:08 | 8:18/mi
30K· 18.64 mi
2:35:01
Rank: #16929 (+337)
25K → 30K
26:53 | 8:39/mi
20M
2:46:51
Rank: #16780 (+149)
30K → 20M
11:50 | 8:42/mi
21M
2:56:14
Rank: #16652 (+128)
20M → 21M
9:23 | 9:23/mi
35K· 21.75 mi
3:02:17
Rank: #16500 (+152)
21M → 35K
6:03 | 8:05/mi
23M
3:12:46
Rank: #16208 (+292)
35K → 23M
10:29 | 8:22/mi
24M
3:20:46
Rank: #16000 (+208)
23M → 24M
8:00 | 8:00/mi
40K· 24.85 mi
3:27:51
Rank: #15835 (+165)
24M → 40K
7:05 | 8:17/mi
25.2M
3:31:02
Rank: #15776 (+59)
40K → 25.2M
3:11 | 9:14/mi
Finish· 26.22 mi
3:39:12
Rank: #15671 (+105)
25.2M → Finish
8:10 | 8:01/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:00
Pace8:14 /mi
2nd Half
Distance13.11 mi
Time1:51:12
Pace8:29 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:4625:338:1325:33
8:13
-
10K
6.21 mi11:47:0950:568:1225:23
8:10
-0:03
15K
9.32 mi12:12:341:16:218:1125:25
8:11
+0:01
20K
12.43 mi12:38:391:42:268:1526:05
8:24
+0:13
Half
13.11 mi12:44:131:48:008:145:34
8:10
-0:14
25K
15.53 mi13:04:212:08:088:1520:08
8:18
+0:08
30K
18.64 mi13:31:142:35:018:1926:53
8:39
+0:21
20M
20.00 mi13:43:042:46:518:2111:50
8:42
+0:03
21M
21.00 mi13:52:272:56:148:249:23
9:23
+0:41
35K
21.75 mi13:58:303:02:178:236:03
8:05
-1:18
23M
23.00 mi14:08:593:12:468:2310:29
8:22
+0:17
24M
24.00 mi14:16:593:20:468:228:00
8:00
-0:22
40K
24.85 mi14:24:043:27:518:227:05
8:17
+0:17
25.2M
25.20 mi14:27:153:31:028:223:11
9:14
+0:57
Finish
26.22 mi14:35:253:39:128:228:10
8:01
-1:13

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

8:00 /mi

Average Pace

8:22 /mi

Slowest Pace

9:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:26:38

94% of race

Time at Steady Pace

12:34

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:22 /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 mi11:21:4625:338:1325:33
8:13
#18266
10K
6.21 mi11:47:0950:568:1225:23
8:10
#17966
15K
9.32 mi12:12:341:16:218:1125:25
8:11
#17708
20K
12.43 mi12:38:391:42:268:1526:05
8:24
#17627
Half
13.11 mi12:44:131:48:008:145:34
8:10
#17602
25K
15.53 mi13:04:212:08:088:1520:08
8:18
#17266
30K
18.64 mi13:31:142:35:018:1926:53
8:39
#16929
20M
20.00 mi13:43:042:46:518:2111:50
8:42
#16780
21M
21.00 mi13:52:272:56:148:249:23
9:23
#16652
35K
21.75 mi13:58:303:02:178:236:03
8:05
#16500
23M
23.00 mi14:08:593:12:468:2310:29
8:22
#16208
24M
24.00 mi14:16:593:20:468:228:00
8:00
#16000
40K
24.85 mi14:24:043:27:518:227:05
8:17
#15835
25.2M
25.20 mi14:27:153:31:028:223:11
9:14
#15776
Finish
26.22 mi14:35:253:39:128:228:10
8:01
#15671
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi182666502650217278(Top 61%)5886(Top 48%)5886(Top 325%)
10K6.21 mi3.10 mi17966+3006304+1986304+19817697(Top 62%)6113(Top 50%)6113(Top 337%)
15K9.32 mi3.11 mi17708+2586146+1586146+15817278(Top 61%)5886(Top 48%)5886(Top 325%)
20K12.43 mi3.11 mi17627+816114+326114+3217523(Top 62%)6059(Top 50%)6059(Top 334%)
Half13.11 mi0.68 mi17602+256098+166098+1617045(Top 60%)5783(Top 47%)5783(Top 319%)
25K15.53 mi2.42 mi17266+3365923+1755923+17515959(Top 56%)5291(Top 43%)5291(Top 292%)
30K18.64 mi3.11 mi16929+3375770+1535770+15315728(Top 55%)5299(Top 43%)5299(Top 292%)
20M20.00 mi1.36 mi16780+1495705+655705+6515140(Top 53%)5120(Top 42%)5120(Top 282%)
21M21.00 mi1.00 mi16652+1285671+345671+3415558(Top 55%)5483(Top 45%)5483(Top 302%)
35K21.75 mi0.75 mi16500+1525604+675604+6712907(Top 45%)4126(Top 34%)4126(Top 228%)
23M23.00 mi1.25 mi16208+2925467+1375467+13712542(Top 44%)4027(Top 33%)4027(Top 222%)
24M24.00 mi1.00 mi16000+2085385+825385+8211295(Top 40%)3475(Top 28%)3475(Top 192%)
40K24.85 mi0.85 mi15835+1655309+765309+7612105(Top 43%)3978(Top 33%)3978(Top 219%)
25.2M25.20 mi0.35 mi15776+595291+185291+1813181(Top 46%)4600(Top 38%)4600(Top 254%)
Finish26.22 mi1.02 mi15671+1055252+395252+3913010(Top 46%)4446(Top 36%)4446(Top 245%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

17278

Females

5886

F45-49

5886

5K→10K

3.1 - 6.2 mi

Top 62%
×5stories
+79ft-138ft

Overall

17697

Females

6113

F45-49

6113

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

17278

Females

5886

F45-49

5886

15K→20K

9.3 - 12.4 mi

Top 62%
×5stories
+106ft-86ft

Overall

17523

Females

6059

F45-49

6059

20K→Half

12.4 - 13.1 mi

Top 60%
×2stories
+19ft-37ft

Overall

17045

Females

5783

F45-49

5783

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

15959

Females

5291

F45-49

5291

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

15728

Females

5299

F45-49

5299

30K→20M

18.6 - 20.0 mi

Top 53%
×5stories
+64ft-50ft

Overall

15140

Females

5120

F45-49

5120

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

15558

Females

5483

F45-49

5483

21M→35K

21.0 - 21.8 mi

Top 45%
×7stories
+17ft-86ft

Overall

12907

Females

4126

F45-49

4126

35K→23M

21.8 - 23.0 mi

Top 44%
×5stories
+23ft-63ft

Overall

12542

Females

4027

F45-49

4027

23M→24M

23.0 - 24.0 mi

Top 40%
×6stories
+12ft-82ft

Overall

11295

Females

3475

F45-49

3475

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

12105

Females

3978

F45-49

3978

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

13181

Females

4600

F45-49

4600

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2stories
+22ft-21ft

Overall

13010

Females

4446

F45-49

4446

Passing Analysis

Category:
Athletes Passed
3200
Passed By
605
Net Change
+2595
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18266
5K → 10K453153+300#18266#17966
10K → 15K33375+258#17966#17708
15K → 20K230149+81#17708#17627
20K → Half5227+25#17627#17602
Half → 25K35822+336#17602#17266
25K → 30K39962+337#17266#16929
30K → 20M17425+149#16929#16780
20M → 21M17345+128#16780#16652
21M → 35K1553+152#16652#16500
35K → 23M30311+292#16500#16208
23M → 24M2113+208#16208#16000
24M → 40K1705+165#16000#15835
40K → 25.2M667+59#15835#15776
25.2M → Finish12318+105#15776#15671
TOTALS3200605+2595
📊

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