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BOSTON MARATHON 2025

Erica Zenke

Bib: 23216•F

MN

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 38%
Masters (Masters Women)
#0 / 6759
Top 24%
Division (F45-49)
#0 / 1813
Top 28%
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
8:11/mi
25:25
↑ 97↓ 3451.5%
10K· 6.21 mi
8:09/mi
50:45
↑ 79↓ 1380.4%
15K· 9.32 mi
8:03/mi
1:15:46
↑ 67↓ 78
20K· 12.43 mi
8:07/mi
1:41:00
↑ 106↓ 860.1%
Half· 13.11 mi
8:02/mi
1:46:29
↑ 19↓ 370.5%
25K· 15.53 mi
8:08/mi
2:06:12
↑ 66↓ 880.2%
30K· 18.64 mi
8:18/mi
2:31:59
↑ 181↓ 1480.2%
20M
8:27/mi
2:43:28
↑ 64↓ 500.2%
21M
8:49/mi
2:52:17
↑ 106↓ 241.6%
35K· 21.75 mi
8:13/mi
2:58:26
↑ 17↓ 861.7%
23M
8:28/mi
3:09:02
↑ 23↓ 630.6%
24M
8:06/mi
3:17:08
↓ 821.3%
40K· 24.85 mi
8:14/mi
3:24:10
↓ 200.3%
25.2M
9:05/mi
3:27:18
↑ 13↓ 160.2%
Finish· 26.22 mi
8:04/mi
3:35:31
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:29
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time1:49:02
Pace8:19 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:4825:258:1125:25
8:11
-
10K
6.21 mi11:47:0850:458:1025:20
8:09
-0:02
15K
9.32 mi12:12:091:15:468:0825:01
8:03
-0:06
20K
12.43 mi12:37:231:41:008:0825:14
8:07
+0:04
Half
13.11 mi12:42:521:46:298:075:29
8:02
-0:05
25K
15.53 mi13:02:352:06:128:0719:43
8:08
+0:06
30K
18.64 mi13:28:222:31:598:0925:47
8:18
+0:10
20M
20.00 mi13:39:512:43:288:1011:29
8:27
+0:09
21M
21.00 mi13:48:402:52:178:128:49
8:49
+0:22
35K
21.75 mi13:54:492:58:268:126:09
8:13
-0:36
23M
23.00 mi14:05:253:09:028:1310:36
8:28
+0:15
24M
24.00 mi14:13:313:17:088:138:06
8:06
-0:22
40K
24.85 mi14:20:333:24:108:137:02
8:14
+0:08
25.2M
25.20 mi14:23:413:27:188:143:08
9:05
+0:51
Finish
26.22 mi14:31:543:35:318:148:13
8:04
-1:01

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

8:02 /mi

Average Pace

8:14 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:32:23

99% of race

Time at Steady Pace

3:08

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:13 /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 mi11:21:4825:258:1125:25
8:11
#17986
10K
6.21 mi11:47:0850:458:1025:20
8:09
#17749
15K
9.32 mi12:12:091:15:468:0825:01
8:03
#17284
20K
12.43 mi12:37:231:41:008:0825:14
8:07
#16871
Half
13.11 mi12:42:521:46:298:075:29
8:02
#16833
25K
15.53 mi13:02:352:06:128:0719:43
8:08
#16483
30K
18.64 mi13:28:222:31:598:0925:47
8:18
#15888
20M
20.00 mi13:39:512:43:288:1011:29
8:27
#15649
21M
21.00 mi13:48:402:52:178:128:49
8:49
#15427
35K
21.75 mi13:54:492:58:268:126:09
8:13
#15332
23M
23.00 mi14:05:253:09:028:1310:36
8:28
#15168
24M
24.00 mi14:13:313:17:088:138:06
8:06
#14976
40K
24.85 mi14:20:333:24:108:137:02
8:14
#14842
25.2M
25.20 mi14:23:413:27:188:143:08
9:05
#14790
Finish
26.22 mi14:31:543:35:318:148:13
8:04
#14697
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi179866334633416431(Top 58%)5395(Top 44%)5395(Top 298%)
10K6.21 mi3.10 mi17749+2376170+1646170+16417577(Top 62%)6046(Top 49%)6046(Top 333%)
15K9.32 mi3.11 mi17284+4655884+2865884+28616431(Top 58%)5395(Top 44%)5395(Top 298%)
20K12.43 mi3.11 mi16871+4135660+2245660+22415803(Top 56%)5097(Top 42%)5097(Top 281%)
Half13.11 mi0.68 mi16833+385628+325628+3216204(Top 57%)5291(Top 43%)5291(Top 292%)
25K15.53 mi2.42 mi16483+3505449+1795449+17914855(Top 52%)4673(Top 38%)4673(Top 258%)
30K18.64 mi3.11 mi15888+5955159+2905159+29013512(Top 48%)4113(Top 34%)4113(Top 227%)
20M20.00 mi1.36 mi15649+2395065+945065+9413497(Top 48%)4248(Top 35%)4248(Top 234%)
21M21.00 mi1.00 mi15427+2224970+954970+9512444(Top 44%)3837(Top 31%)3837(Top 212%)
35K21.75 mi0.75 mi15332+954931+394931+3913797(Top 49%)4577(Top 37%)4577(Top 252%)
23M23.00 mi1.25 mi15168+1644868+634868+6313129(Top 46%)4338(Top 35%)4338(Top 239%)
24M24.00 mi1.00 mi14976+1924788+804788+8011949(Top 42%)3788(Top 31%)3788(Top 209%)
40K24.85 mi0.85 mi14842+1344741+474741+4711764(Top 41%)3799(Top 31%)3799(Top 210%)
25.2M25.20 mi0.35 mi14790+524714+274714+2712376(Top 44%)4175(Top 34%)4175(Top 230%)
Finish26.22 mi1.02 mi14697+934697+174697+1713348(Top 47%)4627(Top 38%)4627(Top 255%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21story building
+97ft-345ft

Overall

16431

Females

5395

F45-49

5395

5K→10K

3.1 - 6.2 mi

Top 62%
×5story building
+79ft-138ft

Overall

17577

Females

6046

F45-49

6046

10K→15K

6.2 - 9.3 mi

Top 58%
×3story building
+67ft-78ft

Overall

16431

Females

5395

F45-49

5395

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

15803

Females

5097

F45-49

5097

20K→Half

12.4 - 13.1 mi

Top 57%
×2story building
+19ft-37ft

Overall

16204

Females

5291

F45-49

5291

Half→25K

13.1 - 15.5 mi

Top 52%
×4story building
+66ft-88ft

Overall

14855

Females

4673

F45-49

4673

25K→30K

15.5 - 18.6 mi

Top 48%
×9story building
+181ft-148ft

Overall

13512

Females

4113

F45-49

4113

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

13497

Females

4248

F45-49

4248

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

12444

Females

3837

F45-49

3837

21M→35K

21.0 - 21.8 mi

Top 49%
×7story building
+17ft-86ft

Overall

13797

Females

4577

F45-49

4577

35K→23M

21.8 - 23.0 mi

Top 46%
×5story building
+23ft-63ft

Overall

13129

Females

4338

F45-49

4338

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11949

Females

3788

F45-49

3788

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

11764

Females

3799

F45-49

3799

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

12376

Females

4175

F45-49

4175

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

13348

Females

4627

F45-49

4627

Passing Analysis

Category:
Athletes Passed
3719
Passed By
430
Net Change
+3289
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17986
5K → 10K411174+237#17986#17749
10K → 15K50439+465#17749#17284
15K → 20K44330+413#17284#16871
20K → Half5416+38#16871#16833
Half → 25K36717+350#16833#16483
25K → 30K60712+595#16483#15888
30K → 20M26021+239#15888#15649
20M → 21M24220+222#15649#15427
21M → 35K11318+95#15427#15332
35K → 23M19026+164#15332#15168
23M → 24M20210+192#15168#14976
24M → 40K14410+134#14976#14842
40K → 25.2M597+52#14842#14790
25.2M → Finish12330+93#14790#14697
TOTALS3719430+3289
📊

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