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BOSTON MARATHON 2025

Sarah Pearce-Gieck

Bib: 22321•F

AB

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 49%
Division (F45-49)
#0 / 1813
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
8:27/mi
26:14
↑ 97↓ 3451.5%
10K· 6.21 mi
8:21/mi
52:12
↑ 79↓ 1380.4%
15K· 9.32 mi
8:35/mi
1:18:53
↑ 67↓ 78
20K· 12.43 mi
8:56/mi
1:46:39
↑ 106↓ 860.1%
Half· 13.11 mi
8:56/mi
1:52:45
↑ 19↓ 370.5%
25K· 15.53 mi
9:07/mi
2:14:51
↑ 66↓ 880.2%
30K· 18.64 mi
9:48/mi
2:45:18
↑ 181↓ 1480.2%
20M
9:14/mi
2:57:51
↑ 64↓ 500.2%
21M
9:45/mi
3:07:36
↑ 106↓ 241.6%
35K· 21.75 mi
8:27/mi
3:13:55
↑ 17↓ 861.7%
23M
8:31/mi
3:24:35
↑ 23↓ 630.6%
24M
8:24/mi
3:32:59
↓ 821.3%
40K· 24.85 mi
8:47/mi
3:40:30
↓ 200.3%
25.2M
9:28/mi
3:43:46
↑ 13↓ 160.2%
Finish· 26.22 mi
8:41/mi
3:52:37
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:45
Pace8:36 /mi
2nd Half
Distance13.11 mi
Time1:59:52
Pace9:09 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:3426:148:2726:14
8:27
-
10K
6.21 mi11:47:3252:128:2425:58
8:21
-0:06
15K
9.32 mi12:14:131:18:538:2826:41
8:35
+0:14
20K
12.43 mi12:41:591:46:398:3527:46
8:56
+0:21
Half
13.11 mi12:48:051:52:458:366:06
8:56
0:00
25K
15.53 mi13:10:112:14:518:4122:06
9:07
+0:11
30K
18.64 mi13:40:382:45:188:5230:27
9:48
+0:41
20M
20.00 mi13:53:112:57:518:5412:33
9:14
-0:34
21M
21.00 mi14:02:563:07:368:569:45
9:45
+0:31
35K
21.75 mi14:09:153:13:558:556:19
8:27
-1:18
23M
23.00 mi14:19:553:24:358:5410:40
8:31
+0:04
24M
24.00 mi14:28:193:32:598:528:24
8:24
-0:07
40K
24.85 mi14:35:503:40:308:527:31
8:47
+0:23
25.2M
25.20 mi14:39:063:43:468:533:16
9:28
+0:41
Finish
26.22 mi14:47:573:52:378:538:51
8:41
-0:47

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

8:21 /mi

Average Pace

8:53 /mi

Slowest Pace

9:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:56:36

76% of race

Time at Steady Pace

56:01

24% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:52 /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 mi11:21:3426:148:2726:14
8:27
#19575
10K
6.21 mi11:47:3252:128:2425:58
8:21
#19244
15K
9.32 mi12:14:131:18:538:2826:41
8:35
#19448
20K
12.43 mi12:41:591:46:398:3527:46
8:56
#19783
Half
13.11 mi12:48:051:52:458:366:06
8:56
#19871
25K
15.53 mi13:10:112:14:518:4122:06
9:07
#19945
30K
18.64 mi13:40:382:45:188:5230:27
9:48
#20222
20M
20.00 mi13:53:112:57:518:5412:33
9:14
#20045
21M
21.00 mi14:02:563:07:368:569:45
9:45
#19872
35K
21.75 mi14:09:153:13:558:556:19
8:27
#19717
23M
23.00 mi14:19:553:24:358:5410:40
8:31
#19384
24M
24.00 mi14:28:193:32:598:528:24
8:24
#19165
40K
24.85 mi14:35:503:40:308:527:31
8:47
#18994
25.2M
25.20 mi14:39:063:43:468:533:16
9:28
#18935
Finish
26.22 mi14:47:573:52:378:538:51
8:41
#18869
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi195757242724219871(Top 70%)7372(Top 60%)7372(Top 407%)
10K6.21 mi3.10 mi19244+3317035+2077035+20718937(Top 67%)6845(Top 56%)6845(Top 378%)
15K9.32 mi3.11 mi19448-2047153-1187153-11819871(Top 70%)7372(Top 60%)7372(Top 407%)
20K12.43 mi3.11 mi19783-3357354-2017354-20120652(Top 73%)7863(Top 64%)7863(Top 434%)
Half13.11 mi0.68 mi19871-887400-467400-4621571(Top 76%)8340(Top 68%)8340(Top 460%)
25K15.53 mi2.42 mi19945-747451-517451-5120423(Top 72%)7766(Top 64%)7766(Top 428%)
30K18.64 mi3.11 mi20222-2777651-2007651-20021000(Top 74%)8227(Top 67%)8227(Top 454%)
20M20.00 mi1.36 mi20045+1777571+807571+8017975(Top 63%)6704(Top 55%)6704(Top 370%)
21M21.00 mi1.00 mi19872+1737496+757496+7517286(Top 61%)6426(Top 53%)6426(Top 354%)
35K21.75 mi0.75 mi19717+1557425+717425+7115192(Top 53%)5354(Top 44%)5354(Top 295%)
23M23.00 mi1.25 mi19384+3337277+1487277+14813469(Top 47%)4521(Top 37%)4521(Top 249%)
24M24.00 mi1.00 mi19165+2197164+1137164+11313943(Top 49%)4810(Top 39%)4810(Top 265%)
40K24.85 mi0.85 mi18994+1717097+677097+6715194(Top 53%)5638(Top 46%)5638(Top 311%)
25.2M25.20 mi0.35 mi18935+597071+267071+2614556(Top 51%)5345(Top 44%)5345(Top 295%)
Finish26.22 mi1.02 mi18869+667056+157056+1517423(Top 61%)6779(Top 55%)6779(Top 374%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

19871

Females

7372

F45-49

7372

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

18937

Females

6845

F45-49

6845

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

19871

Females

7372

F45-49

7372

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

20652

Females

7863

F45-49

7863

20K→Half

12.4 - 13.1 mi

Top 76%
×2story building
+19ft-37ft

Overall

21571

Females

8340

F45-49

8340

Half→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

20423

Females

7766

F45-49

7766

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

21000

Females

8227

F45-49

8227

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

17975

Females

6704

F45-49

6704

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

17286

Females

6426

F45-49

6426

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

15192

Females

5354

F45-49

5354

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

13469

Females

4521

F45-49

4521

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

13943

Females

4810

F45-49

4810

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

15194

Females

5638

F45-49

5638

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

14556

Females

5345

F45-49

5345

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2story building
+22ft-21ft

Overall

17423

Females

6779

F45-49

6779

Passing Analysis

Category:
Athletes Passed
2416
Passed By
1710
Net Change
+706
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19575
5K → 10K464133+331#19575#19244
10K → 15K118322-204#19244#19448
15K → 20K105440-335#19448#19783
20K → Half1098-88#19783#19871
Half → 25K143217-74#19871#19945
25K → 30K143420-277#19945#20222
30K → 20M19518+177#20222#20045
20M → 21M19017+173#20045#19872
21M → 35K1572+155#19872#19717
35K → 23M3352+333#19717#19384
23M → 24M2212+219#19384#19165
24M → 40K1809+171#19165#18994
40K → 25.2M612+59#18994#18935
25.2M → Finish9428+66#18935#18869
TOTALS24161710+706
📊

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