Boston Marathon logo
BOSTON MARATHON 2025

Emma Kentner

OH

Bib: 17612 F

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 43%
Gender (Female)
#0 / 12228
Top 27%
Division (F18-39)
#0 / 5469
Top 45%
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:42/mi
23:56
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:41/mi
47:47
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:41/mi
1:11:40
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:44/mi
1:35:41
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:42/mi
1:40:56
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:50/mi
1:59:56
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:12/mi
2:25:26
↑ 181↓ 1480.2%
138 ft elev
20M
8:18/mi
2:36:43
↑ 64↓ 500.2%
148 ft elev
21M
8:57/mi
2:45:40
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:46/mi
2:51:29
↑ 17↓ 861.7%
156 ft elev
23M
8:00/mi
3:01:30
↑ 23↓ 630.6%
116 ft elev
24M
7:44/mi
3:09:14
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:53/mi
3:15:58
↓ 200.3%
20 ft elev
25.2M
8:39/mi
3:18:57
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:29/mi
3:26:35
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:40:567:42 /mi⚡ faster
2nd Half
1:45:398:04 /mi+4.7%
Positive split — 4.7% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:0823:567:4223:56
7:42
-
10K
6.21 mi11:37:5947:477:4123:51
7:41
-0:01
15K
9.32 mi12:01:521:11:407:4123:53
7:41
0:00
20K
12.43 mi12:25:531:35:417:4224:01
7:44
+0:03
Half
13.11 mi12:31:081:40:567:425:15
7:42
-0:02
25K
15.53 mi12:50:081:59:567:4319:00
7:50
+0:08
30K
18.64 mi13:15:382:25:267:4825:30
8:12
+0:22
20M
20.00 mi13:26:552:36:437:5011:17
8:18
+0:06
21M
21.00 mi13:35:522:45:407:538:57
8:57
+0:39
35K
21.75 mi13:41:412:51:297:535:49
7:46
-1:11
23M
23.00 mi13:51:423:01:307:5310:01
8:00
+0:14
24M
24.00 mi13:59:263:09:147:537:44
7:44
-0:16
40K
24.85 mi14:06:103:15:587:536:44
7:53
+0:09
25.2M
25.20 mi14:09:093:18:577:542:59
8:39
+0:46
Finish
26.22 mi14:16:473:26:357:537:38
7:29
-1:10

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

7:29 /mi

Average Pace

7:53 /mi

Slowest Pace

8:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

3:03:22

89% of race

Time at Steady Pace

14:16

7% of race

Time at Slower Pace

8:57

4% of race

Average Pace: 7:53 /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 mi11:14:0823:567:4223:56
7:42
#14011
10K
6.21 mi11:37:5947:477:4123:51
7:41
#13842
15K
9.32 mi12:01:521:11:407:4123:53
7:41
#13655
20K
12.43 mi12:25:531:35:417:4224:01
7:44
#13358
Half
13.11 mi12:31:081:40:567:425:15
7:42
#13362
25K
15.53 mi12:50:081:59:567:4319:00
7:50
#13201
30K
18.64 mi13:15:382:25:267:4825:30
8:12
#13106
20M
20.00 mi13:26:552:36:437:5011:17
8:18
#13022
21M
21.00 mi13:35:522:45:407:538:57
8:57
#12988
35K
21.75 mi13:41:412:51:297:535:49
7:46
#12900
23M
23.00 mi13:51:423:01:307:5310:01
8:00
#12694
24M
24.00 mi13:59:263:09:147:537:44
7:44
#12522
40K
24.85 mi14:06:103:15:587:536:44
7:53
#12366
25.2M
25.20 mi14:09:093:18:577:542:59
8:39
#12308
Finish
26.22 mi14:16:473:26:357:537:38
7:29
#12154
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi14011391439141338336693669
10K6.21 mi3.10 mi13842+1693848+663848+661368637693769
15K9.32 mi3.11 mi13655+1873771+773771+771338336693669
20K12.43 mi3.11 mi13358+2973635+1363635+1361267233673367
Half13.11 mi0.68 mi13362-43648-133648-131338937003700
25K15.53 mi2.42 mi13201+1613594+543594+541264434683468
30K18.64 mi3.11 mi13106+953619-253619-251288837663766
20M20.00 mi1.36 mi13022+843594+253594+251251737003700
21M21.00 mi1.00 mi12988+343606-123606-121322042194219
35K21.75 mi0.75 mi12900+883570+363570+361068429552955
23M23.00 mi1.25 mi12694+2063497+733497+731006627782778
24M24.00 mi1.00 mi12522+1723431+663431+66939525282528
40K24.85 mi0.85 mi12366+1563384+473384+47934126152615
25.2M25.20 mi0.35 mi12308+583371+133371+13979829242924
Finish26.22 mi1.02 mi12154+1543324+473324+47915226092609

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21story building
+97ft-345ft

Overall

13383

Females

3669

F18-39

3669

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

13686

Females

3769

F18-39

3769

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+67ft-78ft

Overall

13383

Females

3669

F18-39

3669

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

12672

Females

3367

F18-39

3367

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

13389

Females

3700

F18-39

3700

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

12644

Females

3468

F18-39

3468

25K→30K

15.5 - 18.6 mi

Top 45%
×9story building
+181ft-148ft

Overall

12888

Females

3766

F18-39

3766

30K→20M

18.6 - 20.0 mi

Top 44%
×5story building
+64ft-50ft

Overall

12517

Females

3700

F18-39

3700

20M→21M

20.0 - 21.0 mi

Top 47%
×8story building
+106ft-24ft

Overall

13220

Females

4219

F18-39

4219

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

10684

Females

2955

F18-39

2955

35K→23M

21.8 - 23.0 mi

Top 35%
×5story building
+23ft-63ft

Overall

10066

Females

2778

F18-39

2778

23M→24M

23.0 - 24.0 mi

Top 33%
×6story building
+12ft-82ft

Overall

9395

Females

2528

F18-39

2528

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9341

Females

2615

F18-39

2615

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9798

Females

2924

F18-39

2924

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2story building
+22ft-21ft

Overall

9152

Females

2609

F18-39

2609

Passing Analysis

Category:
Athletes Passed
2742
Passed By
885
Net Change
+1857
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14011
5K → 10K357188+169#14011#13842
10K → 15K304117+187#13842#13655
15K → 20K35154+297#13655#13358
20K → Half3640-4#13358#13362
Half → 25K23675+161#13362#13201
25K → 30K294199+95#13201#13106
30K → 20M15167+84#13106#13022
20M → 21M11682+34#13022#12988
21M → 35K10113+88#12988#12900
35K → 23M22317+206#12900#12694
23M → 24M18210+172#12694#12522
24M → 40K1626+156#12522#12366
40K → 25.2M646+58#12366#12308
25.2M → Finish16511+154#12308#12154
TOTALS2742885+1857

Passing Charts

Category:
Loading...

Passing Circle

Loading...

Position Flow

Loading...

Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing