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BOSTON MARATHON 2025

Stacey Gerber

Bib: 23560•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F55-59)
#0 / 994
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
8:31/mi
26:29
↑ 97↓ 3451.5%
10K· 6.21 mi
10:19/mi
58:32
↑ 79↓ 1380.4%
15K· 9.32 mi
9:35/mi
1:28:18
↑ 67↓ 78
20K· 12.43 mi
9:31/mi
1:57:53
↑ 106↓ 860.1%
Half· 13.11 mi
9:18/mi
2:04:14
↑ 19↓ 370.5%
25K· 15.53 mi
9:28/mi
2:27:10
↑ 66↓ 880.2%
30K· 18.64 mi
9:47/mi
2:57:34
↑ 181↓ 1480.2%
20M
9:41/mi
3:10:44
↑ 64↓ 500.2%
21M
10:42/mi
3:21:26
↑ 106↓ 241.6%
35K· 21.75 mi
9:08/mi
3:28:16
↑ 17↓ 861.7%
23M
9:09/mi
3:39:44
↑ 23↓ 630.6%
24M
9:02/mi
3:48:46
↓ 821.3%
40K· 24.85 mi
9:26/mi
3:56:50
↓ 200.3%
25.2M
10:21/mi
4:00:24
↑ 13↓ 160.2%
Finish· 26.22 mi
8:57/mi
4:09:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time2:04:14
Pace9:29 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:05:17
Pace9:33 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:2926:298:3126:29
8:31
-
10K
6.21 mi11:58:3258:329:2532:03
10:19
+1:48
15K
9.32 mi12:28:181:28:189:2829:46
9:35
-0:44
20K
12.43 mi12:57:531:57:539:2929:35
9:31
-0:04
Half
13.11 mi13:04:142:04:149:296:21
9:18
-0:13
25K
15.53 mi13:27:102:27:109:2822:56
9:28
+0:10
30K
18.64 mi13:57:342:57:349:3230:24
9:47
+0:19
20M
20.00 mi14:10:443:10:449:3213:10
9:41
-0:06
21M
21.00 mi14:21:263:21:269:3610:42
10:42
+1:01
35K
21.75 mi14:28:163:28:169:356:50
9:08
-1:34
23M
23.00 mi14:39:443:39:449:3311:28
9:09
+0:01
24M
24.00 mi14:48:463:48:469:329:02
9:02
-0:07
40K
24.85 mi14:56:503:56:509:328:04
9:26
+0:24
25.2M
25.20 mi15:00:244:00:249:323:34
10:21
+0:55
Finish
26.22 mi15:09:314:09:319:319:07
8:57
-1:24

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

8:31 /mi

Average Pace

9:31 /mi

Slowest Pace

10:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:02:56

25% of race

Time at Steady Pace

1:49:52

44% of race

Time at Slower Pace

1:16:43

31% of race

Average Pace: 9:31 /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 mi11:26:2926:298:3126:29
8:31
#20043
10K
6.21 mi11:58:3258:329:2532:03
10:19
#23947
15K
9.32 mi12:28:181:28:189:2829:46
9:35
#23966
20K
12.43 mi12:57:531:57:539:2929:35
9:31
#23711
Half
13.11 mi13:04:142:04:149:296:21
9:18
#23676
25K
15.53 mi13:27:102:27:109:2822:56
9:28
#23335
30K
18.64 mi13:57:342:57:349:3230:24
9:47
#22871
20M
20.00 mi14:10:443:10:449:3213:10
9:41
#22669
21M
21.00 mi14:21:263:21:269:3610:42
10:42
#22541
35K
21.75 mi14:28:163:28:169:356:50
9:08
#22419
23M
23.00 mi14:39:443:39:449:3311:28
9:09
#22145
24M
24.00 mi14:48:463:48:469:329:02
9:02
#21962
40K
24.85 mi14:56:503:56:509:328:04
9:26
#21831
25.2M
25.20 mi15:00:244:00:249:323:34
10:21
#21780
Finish
26.22 mi15:09:314:09:319:319:07
8:57
#21673
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi200437527752723957(Top 84%)9638(Top 79%)9638(Top 970%)
10K6.21 mi3.10 mi23947-39049655-21289655-212825948(Top 91%)10759(Top 88%)10759(Top 1082%)
15K9.32 mi3.11 mi23966-199657-29657-223957(Top 84%)9638(Top 79%)9638(Top 970%)
20K12.43 mi3.11 mi23711+2559523+1349523+13422973(Top 81%)9131(Top 75%)9131(Top 919%)
Half13.11 mi0.68 mi23676+359506+179506+1722995(Top 81%)9139(Top 75%)9139(Top 919%)
25K15.53 mi2.42 mi23335+3419318+1889318+18821737(Top 77%)8510(Top 70%)8510(Top 856%)
30K18.64 mi3.11 mi22871+4649109+2099109+20920956(Top 74%)8210(Top 67%)8210(Top 826%)
20M20.00 mi1.36 mi22669+2029023+869023+8619926(Top 70%)7746(Top 63%)7746(Top 779%)
21M21.00 mi1.00 mi22541+1288967+568967+5620615(Top 73%)8256(Top 68%)8256(Top 831%)
35K21.75 mi0.75 mi22419+1228915+528915+5218932(Top 67%)7429(Top 61%)7429(Top 747%)
23M23.00 mi1.25 mi22145+2748801+1148801+11417171(Top 60%)6549(Top 54%)6549(Top 659%)
24M24.00 mi1.00 mi21962+1838717+848717+8417575(Top 62%)6811(Top 56%)6811(Top 685%)
40K24.85 mi0.85 mi21831+1318669+488669+4818468(Top 65%)7376(Top 60%)7376(Top 742%)
25.2M25.20 mi0.35 mi21780+518645+248645+2418517(Top 65%)7406(Top 61%)7406(Top 745%)
Finish26.22 mi1.02 mi21673+1078605+408605+4018799(Top 66%)7495(Top 61%)7495(Top 754%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21story building
+97ft-345ft

Overall

23957

Females

9638

F55-59

9638

5K→10K

3.1 - 6.2 mi

Top 91%
×5story building
+79ft-138ft

Overall

25948

Females

10759

F55-59

10759

10K→15K

6.2 - 9.3 mi

Top 84%
×3story building
+67ft-78ft

Overall

23957

Females

9638

F55-59

9638

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

22973

Females

9131

F55-59

9131

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

22995

Females

9139

F55-59

9139

Half→25K

13.1 - 15.5 mi

Top 77%
×4story building
+66ft-88ft

Overall

21737

Females

8510

F55-59

8510

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

20956

Females

8210

F55-59

8210

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

19926

Females

7746

F55-59

7746

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

20615

Females

8256

F55-59

8256

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

18932

Females

7429

F55-59

7429

35K→23M

21.8 - 23.0 mi

Top 60%
×5story building
+23ft-63ft

Overall

17171

Females

6549

F55-59

6549

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

17575

Females

6811

F55-59

6811

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

18468

Females

7376

F55-59

7376

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18517

Females

7406

F55-59

7406

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2story building
+22ft-21ft

Overall

18799

Females

7495

F55-59

7495

Passing Analysis

Category:
Athletes Passed
2538
Passed By
4168
Net Change
-1630
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20043
5K → 10K43908-3904#20043#23947
10K → 15K143162-19#23947#23966
15K → 20K28429+255#23966#23711
20K → Half449+35#23711#23676
Half → 25K3454+341#23676#23335
25K → 30K47612+464#23335#22871
30K → 20M2053+202#22871#22669
20M → 21M15224+128#22669#22541
21M → 35K1231+122#22541#22419
35K → 23M2762+274#22419#22145
23M → 24M1830+183#22145#21962
24M → 40K1332+131#21962#21831
40K → 25.2M543+51#21831#21780
25.2M → Finish1169+107#21780#21673
TOTALS25384168-1630
📊

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