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BOSTON MARATHON 2025

Zoey Kaelberer

Bib: 17184•F

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 43%
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
8:02/mi
24:58
↑ 97↓ 3451.5%
10K· 6.21 mi
8:12/mi
50:27
↑ 79↓ 1380.4%
15K· 9.32 mi
8:23/mi
1:16:30
↑ 67↓ 78
20K· 12.43 mi
8:32/mi
1:43:02
↑ 106↓ 860.1%
Half· 13.11 mi
8:23/mi
1:48:45
↑ 19↓ 370.5%
25K· 15.53 mi
8:29/mi
2:09:18
↑ 66↓ 880.2%
30K· 18.64 mi
8:41/mi
2:36:18
↑ 181↓ 1480.2%
20M
8:42/mi
2:48:07
↑ 64↓ 500.2%
21M
8:54/mi
2:57:01
↑ 106↓ 241.6%
35K· 21.75 mi
8:16/mi
3:03:12
↑ 17↓ 861.7%
23M
8:38/mi
3:14:00
↑ 23↓ 630.6%
24M
8:06/mi
3:22:06
↓ 821.3%
40K· 24.85 mi
8:10/mi
3:29:05
↓ 200.3%
25.2M
8:33/mi
3:32:02
↑ 13↓ 160.2%
Finish· 26.22 mi
7:20/mi
3:39:30
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:45
Pace8:18 /mi
2nd Half
Distance13.11 mi
Time1:50:45
Pace8:27 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:2124:588:0224:58
8:02
-
10K
6.21 mi11:40:5050:278:0725:29
8:12
+0:10
15K
9.32 mi12:06:531:16:308:1226:03
8:23
+0:11
20K
12.43 mi12:33:251:43:028:1726:32
8:32
+0:09
Half
13.11 mi12:39:081:48:458:185:43
8:23
-0:09
25K
15.53 mi12:59:412:09:188:1920:33
8:29
+0:06
30K
18.64 mi13:26:412:36:188:2327:00
8:41
+0:12
20M
20.00 mi13:38:302:48:078:2411:49
8:42
+0:01
21M
21.00 mi13:47:242:57:018:268:54
8:54
+0:12
35K
21.75 mi13:53:353:03:128:256:11
8:16
-0:38
23M
23.00 mi14:04:233:14:008:2610:48
8:38
+0:22
24M
24.00 mi14:12:293:22:068:258:06
8:06
-0:32
40K
24.85 mi14:19:283:29:058:256:59
8:10
+0:04
25.2M
25.20 mi14:22:253:32:028:252:57
8:33
+0:23
Finish
26.22 mi14:29:533:39:308:237:28
7:20
-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

7:20 /mi

Average Pace

8:23 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:13:00

33% of race

Time at Steady Pace

1:27:59

40% of race

Time at Slower Pace

58:31

27% 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 mi11:15:2124:588:0224:58
8:02
#16877
10K
6.21 mi11:40:5050:278:0725:29
8:12
#17403
15K
9.32 mi12:06:531:16:308:1226:03
8:23
#17805
20K
12.43 mi12:33:251:43:028:1726:32
8:32
#17944
Half
13.11 mi12:39:081:48:458:185:43
8:23
#17955
25K
15.53 mi12:59:412:09:188:1920:33
8:29
#17740
30K
18.64 mi13:26:412:36:188:2327:00
8:41
#17372
20M
20.00 mi13:38:302:48:078:2411:49
8:42
#17169
21M
21.00 mi13:47:242:57:018:268:54
8:54
#16888
35K
21.75 mi13:53:353:03:128:256:11
8:16
#16774
23M
23.00 mi14:04:233:14:008:2610:48
8:38
#16570
24M
24.00 mi14:12:293:22:068:258:06
8:06
#16343
40K
24.85 mi14:19:283:29:058:256:59
8:10
#16150
25.2M
25.20 mi14:22:253:32:028:252:57
8:33
#16037
Finish
26.22 mi14:29:533:39:308:237:28
7:20
#15746
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi168775670567018606(Top 66%)6659(Top 54%)6659(Top 122%)
10K6.21 mi3.10 mi17403-5265975-3055975-30517913(Top 63%)6243(Top 51%)6243(Top 114%)
15K9.32 mi3.11 mi17805-4026209-2346209-23418606(Top 66%)6659(Top 54%)6659(Top 122%)
20K12.43 mi3.11 mi17944-1396304-956304-9518499(Top 65%)6625(Top 54%)6625(Top 121%)
Half13.11 mi0.68 mi17955-116311-76311-718475(Top 65%)6589(Top 54%)6589(Top 120%)
25K15.53 mi2.42 mi17740+2156201+1106201+11017034(Top 60%)5869(Top 48%)5869(Top 107%)
30K18.64 mi3.11 mi17372+3686042+1596042+15915954(Top 56%)5436(Top 44%)5436(Top 99%)
20M20.00 mi1.36 mi17169+2035942+1005942+10015058(Top 53%)5079(Top 42%)5079(Top 93%)
21M21.00 mi1.00 mi16888+2815801+1415801+14112966(Top 46%)4109(Top 34%)4109(Top 75%)
35K21.75 mi0.75 mi16774+1145756+455756+4514097(Top 50%)4733(Top 39%)4733(Top 87%)
23M23.00 mi1.25 mi16570+2045676+805676+8014117(Top 50%)4861(Top 40%)4861(Top 89%)
24M24.00 mi1.00 mi16343+2275571+1055571+10511958(Top 42%)3797(Top 31%)3797(Top 69%)
40K24.85 mi0.85 mi16150+1935486+855486+8511418(Top 40%)3627(Top 30%)3627(Top 66%)
25.2M25.20 mi0.35 mi16037+1135436+505436+509270(Top 33%)2707(Top 22%)2707(Top 49%)
Finish26.22 mi1.02 mi15746+2915298+1385298+1388013(Top 28%)2088(Top 17%)2088(Top 38%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

18606

Females

6659

F18-39

6659

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

17913

Females

6243

F18-39

6243

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

18606

Females

6659

F18-39

6659

15K→20K

9.3 - 12.4 mi

Top 65%
×5story building
+106ft-86ft

Overall

18499

Females

6625

F18-39

6625

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

18475

Females

6589

F18-39

6589

Half→25K

13.1 - 15.5 mi

Top 60%
×4story building
+66ft-88ft

Overall

17034

Females

5869

F18-39

5869

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

15954

Females

5436

F18-39

5436

30K→20M

18.6 - 20.0 mi

Top 53%
×5story building
+64ft-50ft

Overall

15058

Females

5079

F18-39

5079

20M→21M

20.0 - 21.0 mi

Top 46%
×8story building
+106ft-24ft

Overall

12966

Females

4109

F18-39

4109

21M→35K

21.0 - 21.8 mi

Top 50%
×7story building
+17ft-86ft

Overall

14097

Females

4733

F18-39

4733

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

14117

Females

4861

F18-39

4861

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

11958

Females

3797

F18-39

3797

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11418

Females

3627

F18-39

3627

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

9270

Females

2707

F18-39

2707

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2story building
+22ft-21ft

Overall

8013

Females

2088

F18-39

2088

Passing Analysis

Category:
Athletes Passed
2757
Passed By
1626
Net Change
+1131
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16877
5K → 10K124650-526#16877#17403
10K → 15K85487-402#17403#17805
15K → 20K135274-139#17805#17944
20K → Half3142-11#17944#17955
Half → 25K27358+215#17955#17740
25K → 30K42153+368#17740#17372
30K → 20M21815+203#17372#17169
20M → 21M2909+281#17169#16888
21M → 35K1217+114#16888#16774
35K → 23M22016+204#16774#16570
23M → 24M2347+227#16570#16343
24M → 40K1974+193#16343#16150
40K → 25.2M1152+113#16150#16037
25.2M → Finish2932+291#16037#15746
TOTALS27571626+1131
📊

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