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BOSTON MARATHON 2025

Gretchen Pifer

Bib: 14026•F

PA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
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
7:27/mi
23:09
↑ 97↓ 3451.5%
10K· 6.21 mi
7:22/mi
46:03
↑ 79↓ 1380.4%
15K· 9.32 mi
7:28/mi
1:09:15
↑ 67↓ 78
20K· 12.43 mi
7:34/mi
1:32:47
↑ 106↓ 860.1%
Half· 13.11 mi
7:30/mi
1:37:54
↑ 19↓ 370.5%
25K· 15.53 mi
7:40/mi
1:56:29
↑ 66↓ 880.2%
30K· 18.64 mi
8:08/mi
2:21:46
↑ 181↓ 1480.2%
20M
15:15/mi
2:42:30
↑ 64↓ 500.2%
21M
10:03/mi
2:52:33
↑ 106↓ 241.6%
35K· 21.75 mi
8:12/mi
2:58:41
↑ 17↓ 861.7%
23M
28:29/mi
3:34:21
↑ 23↓ 630.6%
24M
8:28/mi
3:42:49
↓ 821.3%
40K· 24.85 mi
8:24/mi
3:50:00
↓ 200.3%
25.2M
13:41/mi
3:54:43
↑ 13↓ 160.2%
Finish· 26.22 mi
8:07/mi
4:02:59
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:54
Pace7:28 /mi
2nd Half
Distance13.11 mi
Time2:25:05
Pace11:04 /mi
📊Positive Split: 48.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:1123:097:2723:09
7:27
-
10K
6.21 mi11:16:0546:037:2522:54
7:22
-0:05
15K
9.32 mi11:39:171:09:157:2623:12
7:28
+0:06
20K
12.43 mi12:02:491:32:477:2823:32
7:34
+0:06
Half
13.11 mi12:07:561:37:547:285:07
7:30
-0:04
25K
15.53 mi12:26:311:56:297:3018:35
7:40
+0:10
30K
18.64 mi12:51:482:21:467:3625:17
8:08
+0:28
20M
20.00 mi13:12:322:42:308:0720:44
15:15
+7:07
21M
21.00 mi13:22:352:52:338:1310:03
10:03
-5:12
35K
21.75 mi13:28:432:58:418:136:08
8:12
-1:51
23M
23.00 mi14:04:233:34:219:1935:40
28:29
+20:17
24M
24.00 mi14:12:513:42:499:178:28
8:28
-20:01
40K
24.85 mi14:20:023:50:009:157:11
8:24
-0:04
25.2M
25.20 mi14:24:453:54:439:194:43
13:41
+5:17
Finish
26.22 mi14:33:014:02:599:168:16
8:07
-5:34

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

7:22 /mi

Average Pace

9:16 /mi

Slowest Pace

28:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

3:01:52

75% of race

Time at Slower Pace

1:01:07

25% of race

Average Pace: 9:16 /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 mi10:53:1123:097:2723:09
7:27
#11826
10K
6.21 mi11:16:0546:037:2522:54
7:22
#11340
15K
9.32 mi11:39:171:09:157:2623:12
7:28
#11350
20K
12.43 mi12:02:491:32:477:2823:32
7:34
#11372
Half
13.11 mi12:07:561:37:547:285:07
7:30
#11387
25K
15.53 mi12:26:311:56:297:3018:35
7:40
#11322
30K
18.64 mi12:51:482:21:467:3625:17
8:08
#11472
20M
20.00 mi13:12:322:42:308:0720:44
15:15
#15321
21M
21.00 mi13:22:352:52:338:1310:03
10:03
#15515
35K
21.75 mi13:28:432:58:418:136:08
8:12
#15432
23M
23.00 mi14:04:233:34:219:1935:40
28:29
#21315
24M
24.00 mi14:12:513:42:499:178:28
8:28
#21053
40K
24.85 mi14:20:023:50:009:157:11
8:24
#20837
25.2M
25.20 mi14:24:453:54:439:194:43
13:41
#20951
Finish
26.22 mi14:33:014:02:599:168:16
8:07
#20774
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi118262707270711510(Top 41%)2645(Top 22%)2645(Top 48%)
10K6.21 mi3.10 mi11340+4862473+2342473+23410947(Top 39%)2288(Top 19%)2288(Top 42%)
15K9.32 mi3.11 mi11350-102501-282501-2811510(Top 41%)2645(Top 22%)2645(Top 48%)
20K12.43 mi3.11 mi11372-222541-402541-4011411(Top 40%)2696(Top 22%)2696(Top 49%)
Half13.11 mi0.68 mi11387-152551-102551-1011817(Top 42%)2856(Top 23%)2856(Top 52%)
25K15.53 mi2.42 mi11322+652550+12550+111299(Top 40%)2748(Top 22%)2748(Top 50%)
30K18.64 mi3.11 mi11472-1502717-1672717-16712373(Top 44%)3493(Top 29%)3493(Top 64%)
20M20.00 mi1.36 mi15321-38494872-21554872-215527973(Top 98%)12040(Top 98%)12040(Top 220%)
21M21.00 mi1.00 mi15515-1945021-1495021-14918532(Top 65%)7084(Top 58%)7084(Top 130%)
35K21.75 mi0.75 mi15432+834990+314990+3113692(Top 48%)4539(Top 37%)4539(Top 83%)
23M23.00 mi1.25 mi21315-58838331-33418331-334128397(Top 100%)12228(Top 100%)12228(Top 224%)
24M24.00 mi1.00 mi21053+2628220+1118220+11114350(Top 51%)5019(Top 41%)5019(Top 92%)
40K24.85 mi0.85 mi20837+2168110+1108110+11012867(Top 45%)4387(Top 36%)4387(Top 80%)
25.2M25.20 mi0.35 mi20951-1148183-738183-7325924(Top 91%)11136(Top 91%)11136(Top 204%)
Finish26.22 mi1.02 mi20774+1778100+838100+8313737(Top 48%)4835(Top 40%)4835(Top 88%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

11510

Females

2645

F18-39

2645

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

10947

Females

2288

F18-39

2288

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

11510

Females

2645

F18-39

2645

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

11411

Females

2696

F18-39

2696

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11817

Females

2856

F18-39

2856

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

11299

Females

2748

F18-39

2748

25K→30K

15.5 - 18.6 mi

Top 44%
×9story building
+181ft-148ft

Overall

12373

Females

3493

F18-39

3493

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

27973

Females

12040

F18-39

12040

20M→21M

20.0 - 21.0 mi

Top 65%
×8story building
+106ft-24ft

Overall

18532

Females

7084

F18-39

7084

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

13692

Females

4539

F18-39

4539

35K→23M

21.8 - 23.0 mi

Top 100%
×5story building
+23ft-63ft

Overall

28397

Females

12228

F18-39

12228

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

14350

Females

5019

F18-39

5019

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12867

Females

4387

F18-39

4387

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1story
+13ft-16ft

Overall

25924

Females

11136

F18-39

11136

25.2M→Finish

25.2 - 26.2 mi

Top 48%
×2story building
+22ft-21ft

Overall

13737

Females

4835

F18-39

4835

Passing Analysis

Category:
Athletes Passed
2145
Passed By
11093
Net Change
-8948
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11826
5K → 10K56882+486#11826#11340
10K → 15K179189-10#11340#11350
15K → 20K174196-22#11350#11372
20K → Half2237-15#11372#11387
Half → 25K191126+65#11387#11322
25K → 30K179329-150#11322#11472
30K → 20M13850-3849#11472#15321
20M → 21M65259-194#15321#15515
21M → 35K10017+83#15515#15432
35K → 23M15884-5883#15432#21315
23M → 24M2631+262#21315#21053
24M → 40K2160+216#21053#20837
40K → 25.2M9123-114#20837#20951
25.2M → Finish1770+177#20951#20774
TOTALS214511093-8948
📊

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