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BOSTON MARATHON 2025

Jenna Wolfrum

Bib: 3601•F

WI

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 6%
Gender (Female)
#0 / 12228
Top 0.7%
Division (F18-39)
#0 / 5469
Top 1%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:13
Rank: #1792
Start → 5K
19:13 | 6:11/mi
10K· 6.21 mi
38:55
Rank: #2209 (-417)
5K → 10K
19:42 | 6:20/mi
15K· 9.32 mi
58:37
Rank: #2311 (-102)
10K → 15K
19:42 | 6:20/mi
20K· 12.43 mi
1:18:19
Rank: #2274 (+37)
15K → 20K
19:42 | 6:20/mi
Half· 13.11 mi
1:22:32
Rank: #2247 (+27)
20K → Half
4:13 | 6:11/mi
25K· 15.53 mi
1:37:59
Rank: #2214 (+33)
Half → 25K
15:27 | 6:22/mi
30K· 18.64 mi
1:58:07
Rank: #2122 (+92)
25K → 30K
20:08 | 6:29/mi
20M
2:07:03
Rank: #2088 (+34)
30K → 20M
8:56 | 6:34/mi
21M
2:13:58
Rank: #2057 (+31)
20M → 21M
6:55 | 6:55/mi
35K· 21.75 mi
2:18:34
Rank: #1989 (+68)
21M → 35K
4:36 | 6:09/mi
23M
2:26:42
Rank: #1910 (+79)
35K → 23M
8:08 | 6:30/mi
24M
2:32:52
Rank: #1838 (+72)
23M → 24M
6:10 | 6:10/mi
40K· 24.85 mi
2:38:16
Rank: #1774 (+64)
24M → 40K
5:24 | 6:19/mi
25.2M
2:40:37
Rank: #1743 (+31)
40K → 25.2M
2:21 | 6:49/mi
Finish· 26.22 mi
2:46:53
Rank: #1694 (+49)
25.2M → Finish
6:16 | 6:09/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:32
Pace6:18 /mi
2nd Half
Distance13.11 mi
Time1:24:21
Pace6:26 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:4619:136:1119:13
6:11
-
10K
6.21 mi10:41:2838:556:1619:42
6:20
+0:09
15K
9.32 mi11:01:1058:376:1719:42
6:20
0:00
20K
12.43 mi11:20:521:18:196:1819:42
6:20
0:00
Half
13.11 mi11:25:051:22:326:184:13
6:11
-0:09
25K
15.53 mi11:40:321:37:596:1815:27
6:22
+0:11
30K
18.64 mi12:00:401:58:076:2020:08
6:29
+0:07
20M
20.00 mi12:09:362:07:036:218:56
6:34
+0:05
21M
21.00 mi12:16:312:13:586:236:55
6:55
+0:21
35K
21.75 mi12:21:072:18:346:224:36
6:09
-0:46
23M
23.00 mi12:29:152:26:426:238:08
6:30
+0:21
24M
24.00 mi12:35:252:32:526:226:10
6:10
-0:20
40K
24.85 mi12:40:492:38:166:225:24
6:19
+0:09
25.2M
25.20 mi12:43:102:40:376:222:21
6:49
+0:30
Finish
26.22 mi12:49:262:46:536:226:16
6:09
-0:40

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

6:09 /mi

Average Pace

6:22 /mi

Slowest Pace

6:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:37:37

94% of race

Time at Steady Pace

9:16

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:22 /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 mi10:21:4619:136:1119:13
6:11
#1792
10K
6.21 mi10:41:2838:556:1619:42
6:20
#2209
15K
9.32 mi11:01:1058:376:1719:42
6:20
#2311
20K
12.43 mi11:20:521:18:196:1819:42
6:20
#2274
Half
13.11 mi11:25:051:22:326:184:13
6:11
#2247
25K
15.53 mi11:40:321:37:596:1815:27
6:22
#2214
30K
18.64 mi12:00:401:58:076:2020:08
6:29
#2122
20M
20.00 mi12:09:362:07:036:218:56
6:34
#2088
21M
21.00 mi12:16:312:13:586:236:55
6:55
#2057
35K
21.75 mi12:21:072:18:346:224:36
6:09
#1989
23M
23.00 mi12:29:152:26:426:238:08
6:30
#1910
24M
24.00 mi12:35:252:32:526:226:10
6:10
#1838
40K
24.85 mi12:40:492:38:166:225:24
6:19
#1774
25.2M
25.20 mi12:43:102:40:376:222:21
6:49
#1743
Finish
26.22 mi12:49:262:46:536:226:16
6:09
#1694
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi179283832597(Top 9%)111(Top 0.9%)111(Top 2%)
10K6.21 mi3.10 mi2209-41794-1194-112692(Top 9%)120(Top 1.0%)120(Top 2%)
15K9.32 mi3.11 mi2311-10298-498-42597(Top 9%)111(Top 0.9%)111(Top 2%)
20K12.43 mi3.11 mi2274+3795+395+32236(Top 8%)99(Top 0.8%)99(Top 2%)
Half13.11 mi0.68 mi2247+2794+194+11941(Top 7%)82(Top 0.7%)82(Top 1%)
25K15.53 mi2.42 mi2214+3393+193+12231(Top 8%)102(Top 0.8%)102(Top 2%)
30K18.64 mi3.11 mi2122+9292+192+11903(Top 7%)84(Top 0.7%)84(Top 2%)
20M20.00 mi1.36 mi2088+3494-294-21949(Top 7%)97(Top 0.8%)97(Top 2%)
21M21.00 mi1.00 mi2057+3193+193+11966(Top 7%)106(Top 0.9%)106(Top 2%)
35K21.75 mi0.75 mi1989+6891+291+21109(Top 4%)58(Top 0.5%)58(Top 1%)
23M23.00 mi1.25 mi1910+7991911456(Top 5%)80(Top 0.7%)80(Top 1%)
24M24.00 mi1.00 mi1838+7290+190+1951(Top 3%)52(Top 0.4%)52(Top 1.0%)
40K24.85 mi0.85 mi1774+6488+288+21026(Top 4%)60(Top 0.5%)60(Top 1%)
25.2M25.20 mi0.35 mi1743+3187+187+11064(Top 4%)79(Top 0.6%)79(Top 1%)
Finish26.22 mi1.02 mi1694+4984+384+31382(Top 5%)88(Top 0.7%)88(Top 2%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2597

Females

111

F18-39

111

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2692

Females

120

F18-39

120

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2597

Females

111

F18-39

111

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2236

Females

99

F18-39

99

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1941

Females

82

F18-39

82

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2231

Females

102

F18-39

102

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1903

Females

84

F18-39

84

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1949

Females

97

F18-39

97

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1966

Females

106

F18-39

106

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1109

Females

58

F18-39

58

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1456

Females

80

F18-39

80

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

951

Females

52

F18-39

52

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1026

Females

60

F18-39

60

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1064

Females

79

F18-39

79

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1382

Females

88

F18-39

88

Passing Analysis

Category:
Athletes Passed
851
Passed By
753
Net Change
+98
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1792
5K → 10K14431-417#1792#2209
10K → 15K37139-102#2209#2311
15K → 20K9154+37#2311#2274
20K → Half292+27#2274#2247
Half → 25K6532+33#2247#2214
25K → 30K12230+92#2214#2122
30K → 20M5420+34#2122#2088
20M → 21M5221+31#2088#2057
21M → 35K680+68#2057#1989
35K → 23M9011+79#1989#1910
23M → 24M786+72#1910#1838
24M → 40K640+64#1838#1774
40K → 25.2M321+31#1774#1743
25.2M → Finish556+49#1743#1694
TOTALS851753+98
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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